The California has definitely grown on me a lot, when I first saw it I thought it looked horribly disproportioned and just not very good. Now I kind of like it, but its been the same with me with all Ferraris since the 308 and F40, really. The fake dual twin exhausts are a bit lame, though, they're just surrounds for much smaller pipes, kind of like the bolt-on exhaust tips people rice their cars up with.
The whole 'Ferraris have to be MR or they're just crap' thing is a load of rubbish. There's been plenty of FR Ferraris, the 599, 612 Scaglietti and 456 being recent GT examples, its just their sports cars, like the 430, 360, F40/50/60 that are mid-engined.
The part that could be considered blasphemy, however, is the folding hard top which adds a severe amount of weight but then this car isn't so much for racing as it is for cruising, kind of like the Merc SL I guess. Having said that, from what I can tell on GT5p, if that's what its really like then they've done an amazing job with it. I only did 3 time trial laps on Suzuka with it, but it handled really well for an FR with all that weight on the rear axle.
The Evora, however, even after I increased the power and decreased the weight felt a bit slow. The gears are far too long and it still felt heavy, despite being 85% of the standard weight with all that extra power, I'm sure if I could have been bothered I could have tuned each gear individually to improve the acceleration (If I remember correctly its only the final drive that can't be changed) but as it stands, it was quite disappointing, but I suppose I was expecting it to be better than the Elise, whereas I should probably be comparing it to a GT like a V8 Vantage or something like that.
As for the Citroen, I can't afford it yet. I gave up trying to do S6, 7 and 10 (the one lap F40 race and the last two tuned car races) before the update, tried them again today and did them all in the first go (which I guess is the 'altered event difficulty' in effect), and after buying all the cars prior to that I don't have a lot of money. I'm looking forward to it, though, it looks pretty awesome.