Hey! I'm new to this subject. I ride a motorcycle so I don't know much about cars. The 1958 vw beetle engine keeps getting broken down and need frequent repairs. It also consumes a lot of fuel. About 8-10 km per L. What type of engine can I use to replace it with? Without cutting the frame and also fuel efficient? I'm from Sri Lanka so the types of vehicle brands are limited. We have toyota, honda, hyundai, Suzuki and other more common types. What low cost engine can I use for this purpose?