Has anyone noticed this with his/her car ? It is rather obvious with my car, especially when the tires are inflated to the eco (high) pressure. Not too much, but the car goes left on the straight road after 200 to 250 meters, when travelling at speeds around 100 km/hour.
It could well be the tyres, but it might be a good idea to make sure the wheels are balanced correctly..worse still, maybe the brakes are binding on that side.
Either way, I'd say go to your dealer.