How about something a 1980's
Group B inspired
overpowered Car with tricky handling: Could go the AWD route like the Gravel loving Front-Engined 1983 Audi Quattro turbo, the RWD route like the tarmac eating mid-engined supercharged Lancia 037, or the all out way with the AWD mid-engined turbo Ford RS200... Of course you can just be crazy and throw in a twin-charged (no-lag) AWD mid engined car as well like the Lancia Delta S4 too.
Also, it'd be nice to see a mid-engined super car to rival the Porsche inspired one (Can't remember its name); like Ferrari inspired (though the porsche inspired one is NA so it is like a mixture)... but something where the engine doesn't feel like its been faced laterally nor which has its top down.