Motor could be Speed passion v3.0 13.5t, or look at others on BRCA 12th Scale electric motors. Tyres - a lot of people have changed to Contact trued and glued I think 35 shore rears and 37 shore fronts. I will double check and post for you tomorrow. Remember if you are coming to Ribble we are open tomorrow then closed for two weeks , then we re open until Xmas.