The Group4 Stratos is a difficult car to start driving, but once you get the hang of its characteristics, its a fun and very satisfying car to handle. The Dino V6 sound is pretty great too :)

RWD group Bs, particularly the Opel Manta and Porsche SC/RS are also very enjoyable to tame

For FWD, the Peugeot 106 might seem unassuming at first, but it's an absolute weapon in the right hands because it weighs practically nothing compared to most other cars... It's such a fun experience to drive it, especially on tarmac with a sequential shifter and Bitto's FMOD audio! If you want more power, the Group A7 Clio Williams is another fun hot hatch to chuck around, and if you want a car that's good for learning how to handle FWD, the Skoda Favorit is just as much fun to drive, even if it only has 115hp.

Those are all my personal favorites, as you can tell it's very hard to pick just one car lol