troyfoo

actually the main thing for pick up is the pwoer to weight ratio since the lotus got the same engine as your but they pick up as a supercar
so the easiest way to help without spending a lot of money is to reduce the weight  
if that case is not enough then try look for a LSD with a lower gear ratio even though it will low down your top speed but the point is who will need top speed for not racing as a nascar.