Favorite Car:

2010 Ferrari 458 Italia

I fucking love this car. I've got it up to an R3 and it is the most balanced car I have. It is amazingly fast, has great acceleration, and I can really make any turn especially with traction and stability control off (without them I can really wipe the car's ass around corners).

Favorite Drivetrain:

2WD/RWD

I used to really like AWD in Forza 3. But, with 4 and with the driving assists off this game really allows for well done controlled drifts. I find trying to drift around corners in AWD cars next to impossible. But, with 2WD, I can really carry a lot of speed around corners.

drifting a AWD is pretty easy and you can have much more aggressive angles, slide in early and just gun it out of it. I like drifting RWD cause AWD is easy and not the same.

@DuhQbnSiLo: Well, yes and no. You can't hold a slide as well or as long with AWD.

Favorite Car:

It's not so much that I like RWD, but that I hate FWD and AWD. The terrible understeer I get in most FWD and AWD cars drives me mad. I just find it much easier to make fine adjustments to my driving line by feathering the throttle in a RWD car.

I'd say my favorite car is the Alfa Romeo Giulia GTA because it's fun to drive, gorgeous to look at and it's an Alfa.

And RWD.

all you rear drive assholes.  I'm gaining a deep appreciation for AWD in this game. 

@mfpantst said:

all you rear drive assholes. I'm gaining a deep appreciation for AWD in this game.

There's too much understeer. With traction and stability control off and with some control RWD cars can really whip around corners. I can't get AWD cars to do that consistently.

@JasonR86: @mfpantst: there are many different factors at play here. Weight balance, tire width, shocks, anti-roll bars, differential settings, etc. With enough tuning, you can make an AWD car pretty neutral, and the same with RWD cars for the most part. I would say, though, that some cars start off too unbalanced to completely fix them within 4za's tuning parameters. If 4za would let me add ballast to certain cars to fix the weight balance, I'd be so happy.

Favorite Car

Mazda RX-7 Spirit R. It's not a great car, and it's not my car, but it is in my club garage so I use it when I'm driving B-Class. Despite the fact it's not absurdly fast, it can handle incredibly well and also works for drifting. The engine noise is beautiful as well, as you'd expect from any and all rotary engine cars from Mazda. It looks even better than the FD, which I think is one of the prettiest Mazda cars I know.

I'm not fussy about my drivetrain, as long as the car turns and doesn't roll in doing so.

I know this is meant for Forza 4, but I don't have it so I will talk in terms of GT5. I think I only ever use FF ans FR/MR with that, so I can't really talk about 4WD except for rallying, but my two most driven cars are my Civic type R I tuned the shit out of, and my Nissan GTR I turned the shit out of. Both of which incredibly fun to drive, as they handle well and have some/a lot of oomph.

Favourite Car:

Lancia 037. Gorgeous to look at in the menus (especially with a Martini paint job) and just handles like a dream. Zero understeer and the supercharger gives it enough torque to zoom along nicely. Lovely jubbly.

Format:

Got to go MR. I love FR, but the added twitchiness of MR helps the way I play, I need stuff to handle like a go-kart.

Ford GT. Looks incredible, very stable..

MR

Ferrari F40. Has been since the original Forza Motorsport.  The NSX is a close second.
 
Either AWD or MR are my favourites, with a slight leaning toward MR. I hate RW.   I am indifferent about FF.  I play with no assists on, as I always have.

favorite car: the koenigsegg agera r (because it can reach the speed of OVER 9000) and AWD i suppose

Favorite Car:

Tough call. I love the Infiniti G37 because it's my dream car in real life and it's fun to drive in the game too. But it's a pretty close call, with the 2002 Skyline coming in at a very close second. That car isn't the fastest, but I love the way it takes corners and accelerates. I'm also super fond of both the modern and older Challengers, as I always feel like I'm just about to completely lose control of the car as I'm whipping along without ever quite doing so.

Favorite Drivetrain:

Probably AWD, though I'm not super particular. I don't do a lot of drifting, but I think AWD gets the best cornering on average.