XK / XKR ( X150 ) 2006 - 2014

On the hunt for a XKR ....opinions please!

 
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Old 04-30-2019, 07:02 PM
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Default On the hunt for a XKR ....opinions please!

As the title says, I'm on the hunt for a XKR. I just sold my 2007 XK Convertible. It's was a nice car but the performance was a little too docile for my taste so, now I'm looking at XKRs.

Now, to my question. Should I go for a 2008 or 2009 XKR or should I look for a newer one? Maybe up to 2012. Is there that much of a difference? I have a $20K to $30K budget.

Any recommendations are appreciated.
 

Last edited by SLazz; 04-30-2019 at 07:19 PM.
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Old 04-30-2019, 07:19 PM
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Don't make the same mistake drive a 4.2 and then drive the 5.0 . My 4.2 has plenty of kick for now but in a couple of years ........
 
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Old 04-30-2019, 07:28 PM
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The real question you should ask yourself is Do you want an additional 100 hp, or 200 hp?
Besides all that, the front end of the 2010+s look better. So does the butt, with LED tails. Oh, and four pipes out the back instead of two. Oh hell, I could go on for awhile here...
For the price difference between the 4.2 and the 5.0 (nearly $zero) why would you NOT get a 5?
 
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Old 04-30-2019, 07:31 PM
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Unless you plan to track your XKR, you'll rarely, if ever, be able to experience the full potential of the 510+HP of the 5.0L XKR. The 420HP 4.2L XKR is no slouch, but doesn't come close to the overkill of the 5.0L.

There are lots of threads discussing the pros and cons of the 4.2L XKR and 5.0L XKR and comparing them. You've been on the Forum over a year and probably are aware of them.

I'd buy the XKR in the nicest condition in the colors you prefer that's within your budget. Simple as that, regardless of whether it's a 4.2L or 5.0L.
 
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Old 04-30-2019, 07:37 PM
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Originally Posted by Stuart S View Post
Unless you plan to track your XKR, you'll rarely, if ever, be able to experience the full potential of the 510+HP of the 5.0L XKR......................................
Nearly every stoplight
 
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Old 04-30-2019, 07:49 PM
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Cee Jay, isn't the order wrong? Stoplights go from red to green. Not red, to yellow, to green.

If performance is on your mind, the 5.0L 2010+ seems the way to go.

2012, body restyle, gets the steering wheel from the XF instead of a X150 unique design. Can get factory backup camera.

Originally Posted by Stuart S View Post
I'd buy the XKR in the nicest condition in the colors you prefer that's within your budget. Simple as that, regardless of whether it's a 4.2L or 5.0L.
This is my personal approach; but I have other faster cars as an option to take out for a drive should I want the superior power.

If this is going to be his only "fast car", then get a 5.0L, otherwise there might always be regrets from not having done so.
 

Last edited by Tervuren; 04-30-2019 at 07:53 PM.
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Old 05-01-2019, 09:37 AM
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Thanks for the replies. I'll drive both the 4.2 and 5.0 and decide on which one scratches the "itch". I think both will satisfy the need for power. I do hope either one will have a more "sporting/firm" suspension than my 2007 XK which was too soft of a ride.

Anyway, whichever car I choose it will be a low mileage example in pristine condition. (I'm prepared to fork out the required cash.) Thanks again.
 

Last edited by SLazz; 05-01-2019 at 10:26 AM.
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Old 05-01-2019, 12:29 PM
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Originally Posted by Tervuren View Post
Stoplights go from red to green. Not red, to yellow, to green.
You need to get around more. There are some communities where they actually do a red -> yellow -> green transition, kind of a 'ready, set, go!' countdown.
I had a WTF? moment the first time I saw it.
 
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Old 05-01-2019, 02:00 PM
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Originally Posted by kj07xk View Post
You need to get around more. There are some communities where they actually do a red -> yellow -> green transition, kind of a 'ready, set, go!' countdown.
I had a WTF? moment the first time I saw it.
A countdown would be nice.

The liability is someone times the count down without looking, and takes a collision with someone late through the intersection.

I am tall, I often cannot see the light, I watch the cross light and time from that. But when the cross light changes, I switch to sweeping what traffic is doing.
 
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Old 05-01-2019, 11:36 PM
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Having owned a 2008 XK, a 2012XK and currently a 2013XKR; my response to your query is by all means go for a 2010+ XKR. Test drive a late model XKR and you will understand where I am coming from.
 
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  #11  
Old 05-02-2019, 02:12 AM
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Basic bolt ons and a tune to a 4.2 xkr and your at same power levels as a 5.0 xkr
And as far as all the research suggests 4.2 are just more reliable with less isues
 
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Old 05-02-2019, 04:05 AM
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I know I am biased, but if I were looking today, I would look for a 2012+ XKR, as they still look current, have all the power of current offerings, are better looking than any F-Type IMHO, have more usable space and they are much more affordable as they approach the 7+ years mark.

The other thing is, there will ALWAYS be a premium for factory built 500+ HP sports cars. It will be a massive selling factor for years to come as it is such a rare plateau in a factory spec car and you will never tire of that power off the line.

Indeed, you will look for every opportunity to feel and hear that powerful engine, you will turn off the radio (Bowers and Wilkins no less, but off it goes), you will look for tunnels, you will look for chances to pull the 80 to 120 KM/H slingshot pass on the highway, you will look to take the top down, you will look for cops, you will look for criminals, you will tell your kids to shut up, you will be racked with guilt, you will ignore your stupid phone, you will curse your stupid phone, you will seek out stoplight launches in the right lane knowing full well it's blocked across the intersection and yet knowing that you will blow by anything in the left lane... Your wife will demand to get out of the car, because, you know, Karma. and then you get out hoping to save your marriage... you buy her a coffee, turn your head back and see the car... then you think to yourself... well......well.... WORTH IT!!



.

Giddy-Up!

Did I mention 510 HP !?!

But I digress....
 
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Old 05-02-2019, 04:44 AM
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Originally Posted by SLazz View Post
Thanks for the replies. I'll drive both the 4.2 and 5.0 and decide on which one scratches the "itch". I think both will satisfy the need for power. I do hope either one will have a more "sporting/firm" suspension than my 2007 XK which was too soft of a ride.
The 5.0 cars are somewhat stiffer, even the non-S/C 5.0. I would not rule the 5.0 XK out unless you must have the other extras of the XKR. The 5.0 S/C engine is amazingly eager though, whatever revs you are at. Very easy to drive quickly. For a big car, it is still quite fun to drive fast on windy roads.
 
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Old 05-02-2019, 04:46 AM
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Originally Posted by AlexJag View Post
Basic bolt ons and a tune to a 4.2 xkr and your at same power levels as a 5.0 xkr
If you are talking about your car, your standing quarter terminal speed is still too low to be claiming that. It should be at least a couple of mph faster and that is taking in to account the extra weight of a convertible. My 5 litre XKR coupe when standard would regularly do over 115mph with a best of 115.73.

While it is still a very impressive result from a DIY tune I still reckon yours is around the 470 mark based on both a terminal speed/weight to hp calculator and from your dyno results.
 
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Old 05-02-2019, 06:58 AM
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Originally Posted by u102768 View Post
If you are talking about your car, your standing quarter terminal speed is still too low to be claiming that. It should be at least a couple of mph faster and that is taking in to account the extra weight of a convertible. My 5 litre XKR coupe when standard would regularly do over 115mph with a best of 115.73.

While it is still a very impressive result from a DIY tune I still reckon yours is around the 470 mark based on both a terminal speed/weight to hp calculator and from your dyno results.
There is more to it than peak HP.

Shift Speed, 5.0L has it here.

The E-diff in the 5.0L XKR also gives a traction advantage.

If you really want a 4.2L to match a 5.0L you'd need to replace the differential and transmission.

These are two of the three things that hold me back from getting a 2008 Portfolio Convertible XKR.
 
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Old 05-02-2019, 07:02 AM
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Then tune the 5.0 and your at 600+ leaving the 4.2 well and truly behind .

The 5.0 looks more of a polished vehicle from the upgraded lights / front bar and monster torque

Please don't think I'm knocking the 4.2 it's a brilliant vehicle with a virtually bullet proof engine get in drive and no need to worry about waterpumps / high pressure injectors failing so I do see where Alex is coming from in that respect .
 
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Old 05-02-2019, 12:38 PM
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Originally Posted by u102768 View Post
If you are talking about your car, your standing quarter terminal speed is still too low to be claiming that. It should be at least a couple of mph faster and that is taking in to account the extra weight of a convertible. My 5 litre XKR coupe when standard would regularly do over 115mph with a best of 115.73.

While it is still a very impressive result from a DIY tune I still reckon yours is around the 470 mark based on both a terminal speed/weight to hp calculator and from your dyno results.
Terminal speed can very track to track , our tracks in California all have higher density altitude compared to Cambos 115 mph run which was at sea level . In my case Density altitude was at 2000 this is on a 12.55 112 mph run, +given fact my car also a convertible and is 100lb havier that alone would put it in 12.45 not even considering Density Altitude which factored in would put it around 12.3 mark . rwh of 432 on Mustang dynometer. With pulley only car was at 359rwh, if you do simple math it's def higher than 470. My before and after 13.3 vs 12.5 gained .8 of sec ,50 hp gain will not do that
How do you explain similar trap speed from 2012 CTS-v on same track night ? That car has 550hp stock
 

Last edited by AlexJag; 05-02-2019 at 05:06 PM.
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Old 05-02-2019, 05:02 PM
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Originally Posted by sharx8 View Post
I know I am biased, but if I were looking today, I would look for a 2012+ XKR, as they still look current, have all the power of current offerings, are better looking than any F-Type IMHO, have more usable space and they are much more affordable as they approach the 7+ years mark.

The other thing is, there will ALWAYS be a premium for factory built 500+ HP sports cars. It will be a massive selling factor for years to come as it is such a rare plateau in a factory spec car and you will never tire of that power off the line.

Indeed, you will look for every opportunity to feel and hear that powerful engine, you will turn off the radio (Bowers and Wilkins no less, but off it goes), you will look for tunnels, you will look for chances to pull the 80 to 120 KM/H slingshot pass on the highway, you will look to take the top down, you will look for cops, you will look for criminals, you will tell your kids to shut up, you will be racked with guilt, you will ignore your stupid phone, you will curse your stupid phone, you will seek out stoplight launches in the right lane knowing full well it's blocked across the intersection and yet knowing that you will blow by anything in the left lane... Your wife will demand to get out of the car, because, you know, Karma. and then you get out hoping to save your marriage... you buy her a coffee, turn your head back and see the car... then you think to yourself... well......well.... WORTH IT!!





.

Giddy-Up!

Did I mention 510 HP !?!

But I digress....
Shhh, you're going to whip me up into a frenzy! I'm going to find you and hide in your bushes and wait for you to leave so I can hear it!
 
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Old 05-03-2019, 03:54 AM
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Originally Posted by AlexJag View Post
Terminal speed can very track to track , our tracks in California all have higher density altitude compared to Cambos 115 mph run which was at sea level . In my case Density altitude was at 2000 this is on a 12.55 112 mph run
Apologies if I misunderstood but I assumed that your latest results were near sea level after you posted this on your other thread and your latest time slip was from there.

Originally Posted by AlexJag View Post
I will be going to Bakersfield track in Jan which is at near see level , so we will see what car traps at.
Originally Posted by AlexJag View Post
How do you explain similar trap speed from 2012 CTS-v on same track night ? That car has 550hp stock
Perhaps because the CTS-v has 551 lb-ft of torque whereas even a standard 4.2L XKR has 560 lb-ft? It is also heavier than the XKR.

The weight of the driver would have some influence as well. I don't know how large you are but I only weigh 66 kg/145 lbs so if I was racing against someone who was 110 kg/242 lbs, that would be another 100 lbs to take in to consideration.

If you ever get a chance you should weigh the car with you in it so you will then have an accurate figure to work with rather than guessing because things like different types of brakes can make a difference to the weight as can wheels, different exhaust configurations, etc.
 

Last edited by u102768; 05-03-2019 at 05:55 AM.
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Old 05-03-2019, 08:36 AM
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Originally Posted by u102768 View Post
The weight of the driver would have some influence as well......I only weigh 66 kg/145 lbs....
My XKR coupe with Alcons weighed in at 1760kg with a 1/4 tank of fuel (3881lbs) which is already 74kgs (163lbs) heavier than what it says in the specs for an XKR coupe.
I weigh ~130kg (287lbs) and when the car was on the weighbridge, with me as well, it was 1890kg (4168lbs) "race weight"
It did a few 115.5mph traps, and pretty much all the calculators say for 4168lbs, that's 500hp.
I should have got you to drive it for a 140lb weight reduction... calculators tell me at 500hp, 4027lbs would be a tenth quicker, and 116.8mph trap.
 

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