I asked them about group buys and they are open to a discount. They sent me some price lists (Attached). I had been checking on their tonneau, but they have to be fitted at their shop. If anyone is interested I will let them know or you can contact them directly. I don't know if this is the correct forum for this but the price lists are all about XK8/R's.
Below is their response to me:

Dear Mike,

Thanks for your e-mail response and that’s kind of you to offer to “promote” re the tonneau.

On the subject of the group buys, I am attaching a number of price lists, in which you may find some items which could be of interest to your forum members.
In particular, can I suggest drawing their attention to our exhaust systems, which are universally rated in the home market as some of the best systems you can buy.
You might also like to note the Speedshift sequential gearchange system for the steel-bodied XKRs.

There is also a new product which is not yet showing in our pricelist. This is the Quaife Automatic Torque Biasing (ATB) Limited Slip Differential (LSD). This is a brilliant, properly engineered product which is available for the steel and aluminium bodied XKs. It automatically transfers drive from a slipping wheel to the other rear wheel which has traction - without locking clutches and without the interference of the traction control or ABS systems. This makes it both a safety system and a performance enhancing system. It is available at a price of £895 + VAT. This price is non-discountable as it is a brand new product, which will be available in 2 weeks (X100 model) and 6 weeks (X150 model).

I realise that the idea of a group buy is to obtain products at better discounts, and we can certainly work on a discount structure of 10% on the parts listed in the pricelists. I cannot give a discount on the ATB LSD, but group buys also reduce carriage and shipping costs !

Please do let me know if there is anything here that takes your fancy !

With Best Regards
Chas
Chas Whitaker
Racing Green Cars Ltd
Direct Tel: 0044 (0) 1252 894 788
Mobile; 0044 (0) 78 10 50 50 59

 

An LSD that doesn't interfere with the TCU and ABS systems??

This is very interesting...I wonder if they make one for the X350 XJ's...