The BMC B series was a line of straight-4 & straight-6 internal combustion engine mostly used in motor cars, created by British automotive manufacturer Austin Motor Company.

The Austin Cambridge is a medium-sized motor car range produced by the Austin Motor Company, in several generations, from September 1954 through to 1971 as cars and to 1973 as light commercials. It replaced the A40 Somerset and was entirely new, with modern unibody construction. The range had two basic body styles with the A40, A50, and early A55 using a traditional rounded shape and later A55 Mark IIs and A60s using Pininfarina styling.