A little ridiculous to say "undrivable" no? It takes getting used to!! You're test driving cars. If u bought the koup, in a week you'll be used to the difference and it'll become second nature. Throttle mod, short shifter, remote starter...3 things that help everything involving shifting!
I wrote "almost un-drivable". Something tells me that even with the short shifter and throttle mod, I'll always be fighting the car. Whereas with the M3, it is nothing but smooth shifting and clutch feel every time I drive it.
How dose a remote starter help with shifting? I am guessing that you're saying I should warm up the car well in order to heat up the transmission fluid for smoother shifts.
All in all, I really like both cars. And yes, I am one of those that really like the Mazda 3 styling, including the front grill. I even find myself taking double-takes whenever I see a new M3. I think it is beautifully sculpted and sporty yet elegant and fun all at the same time.
The decision will come down to whether or not I can live with a cute coup with 2 doors versus a 4-door sedan with less warranty but better driving dynamics. I liked the koup engine sound a lot and overall interior feel. The M3 has slightly more comfy seats.
As far as who drives what, I see pretty much nothing but girls driving koups here. A cousin even told me:"Don't buy a Kia, all I see is girls driving those koups". Even saw a white one on my way home from my test driving last night. Same for M3 though. So they are both popular with girls. I think all small cars are though. So can't really let that affect the decision.
Both cars are good buys in my opinion. Just one is more practical and fun to drive while the other has a nicer interior and better warranty. Gas mileage appears to be identical. The big drawbacks to the koup is that I'll dread seeing the creases next winter and the many reports of creaks/squeeks. And resale value. M3 has a very good resale; and that is the most important factor in determining how much a car will cost you.
If the Elantra had a decent suspension, the decision would have been a lot easier.