yeah...the new skyline GTR would be a good alternative....but to answer your question.... i'll get the most expensive parts available for the dc5 ...KPro , the Mugen exhaust back box (as it quiet and would help to reduce the noise when going decat and heavily modifying the engine) , the Spoon pipes and header, some Toda as well will help to inflate the budget, some 18inch rims and a whole suspension system with fast road set up to keep the performance when going for the 18 inch wheels (Eibach got some expensive springs/ coil over packages) The engine itself, can have the new Js racing or Gruppe M. Some cam shafts can be expensive as well. Spending a few weeks at different Dynos and several maps can help with getting rid of the "excess" pennies that you have left! I think the above will help great the best Front wheel drive car in the world! 8)