I think one of the most misunderstood and / or overlooked French FWD cars is Peugeot 307 CC. RC / 180 version had the same rev-happy engine found on 206 RC, 307 GT and top spec Citroen C4 coupe VTS but the CC being a cabriolet, it had better weight distribution than hatchbacks. I have never seen it in Forza but it was really fun car to race in GT and it was along with 206 CC my fastest FWD Peugeots in the game.
Then there’s 207 CC which also might be pretty good car for upgrading / tuning with 1.6 THP engine and cabriolet’s weight distribution.