Lotus 27 was a FJ version of the Lotus 25 F1 car for the 1963 formula junior season. All aluminum monocoque with steel bulkheads. Originally designed with fibreglass sides which lead to stiffness problems, leading to them being replaced with aluminium. The Team Lotus cars were run by Ron Harris, and Peter Arundell won the 1963 British championship after the initial stiffness problems were solved.

fr:Lotus 27