https://www.japaneseclassics.com/vehicle/1990-nissan-pulsar-gti-r-rb/ Id say get this.
The car has and I quote "276hp" IE apparently the RB has more like 350 hp, it only weighs 2400lb.
Post like this make me wish I hadnt sold my 250hp 1900lb 1990 Civic Si, its still faster around a a track or AX course than anything being mentioned. It was also much faster on Western PA backroads than the local crown Vics, even faster enough to outrun the radios.
It was very sleeper, ran 13 flat quarter miles(very fast back in the mid 2000s), 1.1gs on DOT legal street tires and overall very fast aand easy to drive, would only cost 6-7 k to builld one assuming you could find a nice enough chassis.
its pretty crazy to beat legitmated supercar and hypercar and hyper cars in a then 20 year old hatchback. Sure its a civic is always the knock, but its cheaper enough to wreck and walk away from, which because it has full cage hidden behind the pillars you could have. Most modern cars are bound by too much emissions regulation to truly have fun with anyways, Id get something old, 88-95 Civic, old GTI, a japanese import, original Type R powered Elise, Miata, FOx body mustang, E36 BMW, these are the real performance cars IMO if you have 10k and a shop all can be made into something that will terrorize not just new muscle cars, but basically anything anywhere.