this is my boss's 73 mini he also has a 68 both RHD from england but this one was a blast to drive with a built motor n a t25 turbo in the rear but we blew it after 5,000 miles so we decided to put a d16z6 swap in that i had laying around in my garage n turbo it we thought about putting a b series in it but he is good friends with the owner of minitec that does the b swap and k swaps n says that the d series are just as fast since the b swap and k swap just sping but there still bad ass