The TVR M series is a line of sports cars built by automaker TVR between 1972 and 1979. The series replaced the outgoing TVR Vixen and Tuscan models, and is characterized by a common chassis and shared body style. As with other TVR models before and since, the M-series cars use a front mid-engine, rear-wheel drive layout and body-on-frame construction. The bodies themselves were built from glass-reinforced plastic (GRP). The era of the M series is commonly associated with Martin Lilley who, together with his father, took ownership of the company on 30 November 1965.