I totally not agree with musclecars fitting in just as good/bad as hatchbacks. Musclecars are totally incomparable. They have huge engines with huge output, and they are iconic cars. Those are the cars many dream of and many admire. A Daewoo/Chevrolet Matiz, Opel Kadett or Ford Ka are totally incomparable to such powercars.
You also have to be carefull with degrading all SUV's. You have to make a difference between the Suzuki Vitara/Grand Vitara and Renault Kaleos in one corner, and an ML63 AMG or X5M in the other corner. The image and marketposition is important, so you can't just say none of all SUV's will fit in a game. Some will because they are expensive, luxury, powerfull and very expensive. If it's none of that, the only reason left to include it in a game like TDU2 would be its iconic status.
I rather not see stuff like quads in though, that has less to do with High Life than hatchbacks like an A3, for which Eden might say it's a premium hatchback of a premium brand and that's why it would be in. Quads also require their very own physics and handling which is completely different from cars and bikes, partially do to the fact you have to shift your entire body sideways to be able to steer in any way. The fact they already put in bikes as DLC as they wanted to focus on cars first makes me think we won't have to expect quads in the game, maybe as DLC, but there should be enough interest in it.
The part I just typed about the SUV's applies to the pickup's for exactly the reasons I typed. Some pickups would be nice, but not down to the smallest, cheapest or least equipped barebone car, especially as it has nothing to do with the atmosphere TDU2 will try to breath out towards players.