We have a discussion these days here on the Jag forum germany regarding the v-max restriction of re-imported Jaguar vehicles from the US.

On these cars v-max is limited at about 200 km/h, compared to 250 km/h on ROW cars.
According to the affected people nobody including the dealership here around is actually able to erase this restriction.
We are wondering what (legislation?) may have caused the v-max limitation on us-jags.

Maybe you guys have a clue?

Thanks, Fritz

 

Was not aware of this. My car originally came from the US and the manual says it's limited at 155 mph aprox 250kph

 

 

I think it is partially due to tire companies agreed speed rating liability....the ratings get sketchy and a little vague above y or z rating when you read how it is worded

 

First, I'll make a "Vague Recollection" disclaimer.

Seems to me that, circa 2004-2005, Jaguar base model XJ8 sedans for the US market were equipped with xxx-brand high speed, performance oriented tires which were delivering very poor tread life. Owners were complaining about replacing tires at 10k miles. To quell the complaints, base model XJ8s for the USA market were fitted with longer-life tires carrying a lower speed rating. On these cars the speed limiter was set to [something like] 120 mph versus the previous 155 mph.

I don't recall that any of the sports models were so equpped.

Cheers
DD

 

correct, non sports models were equipped with tires that had a 130mph rating.....everything else was electronically limited at 155

 

Hi Doug,

the "disclaimer" is probably expendable , because your explanation makes the most sense.

Indeed is seems that only the sedans are affected and that only partially. In addition, I´m not aware that this "issue" is known from other vehicle manufacturers except Jaguar. And somebody from the German Chapter assumed already that the restriction was done due to tyre related reasons.

So i guess there is strong evidence that the tyre explanation is close to reality.

Thank you all guys for your thoughts,
Fritz