If you want to sort out your sprint times Mike, heres a few ideas:
Run coilovers. Drop the front fairly close to the ground and the back right up in the air. Rear dampers set rock hard, fronts fairly soft. You need to run nose down to minimise squat when you launch.
Put a set of drag radials on or high profile bald road tyres on, around 20psi pressure. Low profile track slicks or tarmac rally tyres are not really any good for straight line launches because the side walls are far too stiff.
Take everything out apart from what you need to actually drive the car. Stage 1 is back seats/parcel shelf, stage 2 is to also ditch the carpets, passenger seat and interior trim/panels, stage 3 all you have is a gearstick, seat and steering wheel!
A cerametallic paddle clutch will handle any amount of standing starts. A standard or even uprated organic clutch will not.
Smaller than standard wheels, as long as you can get them over your brakes.
