Is it only under acceleration or when you are cruising at 70 mph ? - if it's constant it's likely to be front wheels unbalanced, as I had when I collected our car from Leicestshire last year. (over zealous valeting with pressure washer blowing weights off ! ) Otherwise maybe a loose drive shaft or radius rod etc.....I've had my G for about two weeks now and i Love it my only issue is that under hard acceleration in 6th ~ 70mph the wheel shakes pretty violently, any ideas what it could be?
The car is an 11 plate with 13K on it.