Purely hypothetical, but something I've always wondered. The VR4 requires a relatively high amount investment if one wants to make it quicker and this increases exponentially as you get closer to 400bhp.
So - starting with a standard car, what would be the cheapest car to buy and the cheapest to modify to a reliable 350~400bhp without the use of NOS? As this is hypothecial, don't factor in brakes, suspension etc.
These are my thoughts....
Toyota Soarer 2.5 Turbo
Nissan Skyline GTS-T
Supra Mk4 TT
Toyota Aristo Vertex
Any comment on those or any other suggestions?