Originally Posted by howardcano

Moving the rear wheels back (which is how the the wheelbase is lengthened on the M05), with all else being equal, gives better the straight-line acceleration, since front-to-rear weight transfer is reduced and more weight is placed on the front tires. It also promotes understeer, so you may need change springs, sway bars, or tires to compensate.

It will also make the car less twitchy/more stable.

I'm running the JCW coupe on a long-wheelbase M05.