What hasn't gone wrong have owned the car for 6 months and already the transmission has broke (gears locked together), fan number 1 and 2 have broke only 3 and 4 work, the gas gauge sensor also broke, the car sounds like an old diesel engine when it is not it shakes and rattles over every bump the suspension squeeks that's about it.
The car is pretty fast, but it seems to me if you drive it fast it beaks so you have to drive it like its some old car from the 70s.
The car is pretty comfortable compaired to my last one from gm e. g sunfire which was a money eating pit.
I would never buy a car from gm ever again because this is the second car that I have bought from them that has had some serious problems.
If you had a bad experience with the Sunfire, why go out and get a Cavalier? It's the same car, so of course you'll have the same problems.
Take it in and get it fixed. It has a warranty, right? Your lucky your tranny went now and not after the warranty.
It sounds to me like you do not know how to shift correctly. I think you were leaning on the car really hard and tried to slam the transmission into second without waiting on the RPMs to match, or worse yet, without even fully clutching, destroying your second gear synchronizer and taking first and second gears with it. The transmissions that are put in street cars are not the same types of transmissions that are put in NASCAR and dragsters. Regardless of what car it is, you WILL destroy the transmission if you try to drive it that way way. Learn how to operate your car correctly, especially if you want to drive fast, as you say. Car manufacturers hate manual transmissions, because 90% of the population does not have a clue how they work, and as such, how they are supposed to be driven. That car has an excellent manual transmission, and it is a real shame you destroyed it.
My family has a 2003 Cavalier and 2 years and 90,000 miles the engine died. The "check engine" light stayed on the previous year and had the computer checked at least 7 times. Each report indicated nothing was wrong. We were faithful in getting the oil changed every 3,000 miles. Until the problem with the engine, we loved the car. We had the engine rebuilt and are hoping it will last.