INFO- There are chassis shops that will convert a 4 bar to a 2 bar car. There are also chassis being converted from 37 Coupes to 34 Coupes, both take alot of work and in my opinion are a waste of time and money based on the time and material involved. My favorite chassis is the true two bar sedan chassis. The down fall is there are possibly some safety issues with a true two bar car in a hard impact.,I would not be afraid to drive one, as I have destroyed two and walked away.