Yes they are hard to hook up,but the game is more realistic that way,you gotta drive these things now. Any FR vehicle over 600 Hp is never gonna fully hook up under full power,thats the way it should be. Shake,Id say that your tranny tuning methods somewhat transcend from Gt5 to GT6,at least Ive not had any trouble developing trannies that perform,the suspension however is anyones guess,the only elements Ive seen that have any noticeable effect,are the ride height,ballast and toe.Its a wicked game,lacking a few details,but I like it.