, if you read this, haven’t given up on a reply to your Much appreciated help yet :),
I am sorry that i am only just replying to your last ‘again’ Much appreciated help, all i can say is the truth, and that is,
Iv’e been busy with my billion pound game business 
But seriously this is how it went,
Saw your comment Thursday evening and had to go and try it instantly,
Then at 4 am the next day i had to go to sleep and felt too tired to come and post a reply,
Then later that day, ‘evening’ i turned on comp and tried again to solve the 2 identified problems,
Then next day at 6 30 am went to sleep,
But next morning around 5 am i thought i had found the answer to the main problem to the Advanced Car, But no, it’s better but still not right, and out of over 24 hours spread over 3 days i have slightly solved one of the problems lol.
So yesterday i felt i might as well just get it finished as much as it is then reply to you.
I have made completely new BPs of both of the Advanced Presets, and the Shaking car problem again happened to the BP,
So it does seem like the Skeletal mesh. But after trying so much to get it working, Of which your last post made so much sense and the bones, Constraints not being right, and when i saw my Constraints were very off centre i thought that had to be the problem,
but as i have found, the constraints on the blue buggy don’t seem to be a problem where they are, i have even deleted them and the vehicle seemed totally normal and drove fine ?. then when i bothered to look at the original mesh i see that they are all at zero lol.
i really thought at one point that it was the BP because the same mesh worked fine in another BP, but also tried replacing the BPs Skeletal, with a new mesh and yet the same would happen. all i can say is i have tried so much these last days and feel no closer to why the problems are.
Basically the problem does seem to be with the skeletal meshes ‘but i can’t see why’ i reckon it’s more to do with the bone setup rather than the editing and wheel adding. the wheels i have added seem to be like an additional bone now, and think they are the cause of the problems.
i would like your opinion if you do see this comment, and if your up for checking out the project, the links up the top.
I do much appreciate you trying to help And helping,
I was not wanting to be rude, i just really REALLY wanted to get back with a reply of ‘It’s sorted’ first 