I have my new G35x for around 1300 miles. For the most part it is smooth, but occasionally I feel up and down motion. This occurs on rougher roads, and so may be caused by road imperfections (it feels like the road is a bit rippled, which it may be), but even though I know that the G's suspension is taut, I am surprised at how bouncy the ride is on any road that isn't smooth.

The other thing I've noticed is that the G switches into 4th gear around 40 mph, and I get a bit of the up and down motion then. It is reduced (but not eliminated) if I go to manual and keep it in third until 45 mph.

Anyone else experience this. Is is simply the tight suspension and normal, or should the ride be smoother?

 

Ive told a few people this before but check your tire pressure. when i bought mine it had almost 48psi in each tire. i didnt realize for a week. when i lowered it to 35psi i noticed a big difference.

 

Thanks. Tire pressure is 31.5 psi in each tire, and I also had the dealership check and see if the wheels were balanced. They took it for a test drive and found nothing wrong, checked the balance anyway and found that the wheels were balanced. As I said, it is smooth most of the time, so I may be imagining things, but it is not as smooth on rough roads as I expected.