Not to be one that wants to defend this game here, but it is TDU2 not 'Another game that's a lot like TDU but infinitely better 2' - it wouldn't be TDU2 if it was bug free.
I think a lot of people around the place seem to have this rose-tinted vision of what TDU1 was like. It was buggy, it didn't feel finished by a long shot. Up until the announcement for TDU2 there were people begging Atari for a patch on their forum.
To jog your memory remember how far out the Speedometers were compared to the speed traps? Remember the fact the Alfa GT's Speedo didn't even sync with itself? The voice acting was always crap. Story? There... Was a story in TDU1?... I certainly can't remember it... There were clipping bugs everywhere, just as there are now. I'm not saying it's right to be like that, but it was, is... And unfortunately it's pretty unlikely Eden are going to fix it with patches.
A lot of people are winging about the handling too. And yes, it's different. But with a bit of playing with the settings and driving the right car you can tune it to an acceptable level. [i actually think mine's comparable if not better than TDU1 at the moment] TDU1 wasn't perfect by any means again - when you went over a hill or bump it was to be expected that you would shoot off the road. Equally if you went up/down a hill round a corner the handling would turn against you.
Focus on the positives. You can walk around - I think that's pretty awesome really. You can tart up your crib and so on. There are a couple of gem cars in the game - I think my MiTo is a right hoot to drive on the road and my Delta is fantastic off it. Again, not all the cars in TDU1 were rosy to drive, some people chose to persevere with them and they were rewarded. [Personally I think the Brera is a right pig - and it was one of my favourites in the first game, but check the leaderboards - all the fastest drivers are using them] People are saying that it's not realistic, and no it isn't - it's some arcade hybrid that hasn't quite worked, but at least there are options to make it more tolerable.
As crazy as this sounds - there are some people winging about the realism of the handling of the cars when all they want to do is drive around at the speed limit and use their turn signals all day. Here's an idea - buy a car! Drive it round! Go home. Go to bed. End.
IMHO part of the TDU experience is trying to coax a little life out the game and work with it to create a better experience.