Thanks.

The standard spoiler for an HE is fitted, a little black rubber thing.

Thanks. I am being driven to the conclusion that a good manual box is the answer. I know I should sell the old heap but I'm going to hang on to it. You're right, the expense is considerable.

I'm looking at fitting larger wheels, 18" if I can, on my 1981 HE and I'd like to get them as fat as I can without fouling the bodywork. Has anyone tried this and knows the maximum width the car can take without modifying the bodywork? I would also appreciate any recommendations for 18" wheels. I be...

I have a 1981 HE which is under restoration. It always used to get light around the front end at high speed, 120mph+. Is this a characteristic of later cars as well? If not, I wonder if fitting spoilers from the facelift model would improve the downforce on my car? I would appreciate any views, part...

I have a 1981 XJS HE which I'm restoring. I prefer auto boxes but don't like the gearing of the original 3 speed box which doesn't get into the power band until you're doing 90mph+. Does anyone know of a later GM auto box, perhaps a 5 speed, that might fit onto a V12?