Which class should i do?

The X-Class is clearly too easy to maneuver around the track. Im looking for a decent class to where i can still get decent grip (Somewhere in between a Mazda 787b and a Mazda Furai) and it proposes a challenge to get the best times. X class is way too easy and i miss the old forza 4 days. Any class suggestions?

Thanks

I really enjoy the lower classes, however, I do love my Mazda 787B in the P class. I am actually a “bad/new” FM driver yet have a couple of nice PB’s inside Top 300.