Modified

So much love is heaped on '90s cars that Super Silhouette racers of the '80s nearly always get overlooked, but dude! These things are cool! Super Silhouettes were short lived (raced just in the early part of the decade) and built to Group 5 "Special Production" touring car rules, meaning they were production vehicles with their native engine blocks and limited to 3.0 liters of displacement, and that's pretty much it. Teams could go as crazy as they wanted with every other part of the machine, and by the looks of it they often did. We even read that some engines could reportedly make more power than Formula 1 mills of the time.

There was apparently less straight-6 hate pre-'00 in JGTC GT500, because Nissan and NISMO R34 and R33 Skyline GT-R were able to run versions of the legendary turbo RB26 in competition and were even allowed to punch them out to 2.7 liters later on. In the GT300 class, entries like the Xanavi S14 Silvia above - which featured a 315hp SR20DET inline-4 - were dicing on track with the likes of Toyota MR2 and BMW. (By the way, zoom into each of the photos in the gallery to see how many Volk Racing and SSR wheels you can spot.)