Does anybody else have trouble flying the vehicles? I cannot seem to control them at all. I try to steer and end up doing a bunch of u-turns. Any advice would be appreciated.

Flying vehicles as in like... Land speeders or like the mini-kits. the landspeeder is just like a character. The star fighters and stuff you need to be careful to steer where the ship is facing. if your behind the ship hold the nunchuck stick up for forward. If your at a side angle push the stick in the direction of the front of the ship for forward. If you push it the wrong direction you will start doing the flips and other stupid crap. Hope i helped

He is talking about the Vehicles that you can drive in the levels, like the ones in Lego city.