Stock 4spd tranny can't handle the torque, They seem to always replace trans too. Tesla motor spins to 18k but has gear reduction on motor. On the BMW touring they did budget was 40k pounds but went over budget, There ok but for that kind of money not for me. They have done two Ferrari 308's , old Fiat 550, Range Rover, Lancia Fulvia, BMW Touring and a few more, All quality builds but a lot of $$$