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Show me a FWD STOCK that shows up a STOCK FR of the SAME power/weight ratio.
I'll pit my 2 liter Mazda Protege against a 2 liter US Market Altezza on a short track any time...
I could spend all day explaining how front wheel drive cars do not default to understeer in all situations. In fact, front wheel drive cars do oversteer... sometimes a lot. If you've ever actually driven a front-wheel drive car in anger at 10/10ths, you'd understand.
Now, come racetrack time, yes, often a rear-wheel drive car will perform better... it'll use its tires a little more evenly, and it can put down power a little earlier. But if it's a common, everyday front-engined rear-wheel drive car... it will understeer. In fact, it will often understeer like a stuck pig.
Front-engined cars understeer on the racetrack due to the fact that they have a large engine over the front axle. Whether they're front, rear or four-wheel drive, they will understeer. BMW gets around this by fiddling with weight balance... put more weight in the back, take some off the front, and presto! you've got a car with a 50:50 weight balance. Kinda unfair, then, to compare FFs and FRs of the same weight, if some of that weight on the FR helps the handling...
A lot of trackday afficionados will have the run of the field in lighter (by design, by nature, and by the fact that they have less mechanical weight to drag around) front-wheel drive cars... one funny posting on the net was of a race instructor demolishing the other guys on track in a 1.5 liter Scion xB, which he loves a lot (and this is a guy who owns a V8 Atom and a bespoke AWD Hayabusa-powered kit car (http://www.dpcars.net) and, at one time, the current M5). The last hillclimb series here was won in a Honda CRX. Before you start complaining "Well, that's a very light car...", it was up against highly modified Evos, WRXs, BMWs and one or two Super Seven clones.
In this case, the front wheel drive layout helps provide a stable and predictable handling platform in which you can counter unwanted oversteer with power-understeer (just like you can in an Evo) and you can still nudge the car into a neutral stance to slight oversteer on demand with some deft throttle-brake juggling.
A boardmate on the Mazda boards posted an FTD (fastest time of the day) at his local autocross event, beating out WRXs, EVOs, M3s and GTRs, simply because his Protege wagon was well-balanced, predictable, and very sharp. Meaning it was neutral and had little in terms of understeer or oversteer. That's without the benefit of an LSD... and all these cars are race-prepared.
There's no unfair tire advantage in pitting a race-prepped FF against a race-prepped FR. In the clip I mentioned previously, the Spoon S2000 and the Spoon Civic Type R sedan were on identical tire compounds and sizes, and the Civic won.
I'm not saying FF is superior in all occassions. Well-engineered FF and FR cars of identical weights and power will often see the FR do better (though of course, as I've said, identical weights are misleading... if they had identical chassis weights and the FR was allowed to be heavier due to the heavier drivetrain, it would be more fair). And the FF car loses out, of course, when you go past the point where current tire technology can cope with the power...
That's the point at which most people go: "See!?! See!?! FWD=teh suck!" To these people, I say... if all you want is straightline power, take a train.
In the end, to completely pooh-pooh any and every FF car (as Onikaze often does...
Don't get me wrong... I've enjoyed driving rear-wheel drive vehicles... and power-sliding is a treat... but technical driving on the racetrack or making the best time you can down your favorite mountain road doesn't involve power-sliding or ass-dragging your car through the turns... it involves precision, nimbleness and stability. I've driven FFs and FRs that have those traits... and I've driven FFs and FRs that don't. I've driven trucks, actually, that do, too (that was a shock).
It's technology, man. Build a chassis good enough, and it'll be an awesome drive... even if its motive power is a team of dogs pulling it via tow cables. It's not about FF versus FR versus AWD... it's simply this... if a car is good, it's good. Period.
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But if we're talking FF versus MR... that's a whole different ballgame...
What was the comment from the "10 Greatest Icons" issue of Evo? "We've got front wheel drive cars (Integra), front-engined four wheel drive cars (Integrale), mid-engined four wheel drive cars, mid-engined rear wheel drive cars, rear-engined rear wheel drive cars, but strangely, no front-engined rear-wheel drive cars here..." (or something like that)...