1966: A Motoring Year in 5 Images The give way rule at roundabouts, known as the offside rule, was formally introduced following research on roundabout safety at the Transport Research Laboratory. Jensen launched the FF, featuring four-wheel drive, a powerful V8 engine, bold Italian styling and the world’s first production car with anti-lock brakes. The first four-level motorway interchange, the M4/M5 Almondsbury interchange was opened. Ford Cortina Mk2 was launched. The plans for London’s ‘Ringway 1’ were published, but only two sections were built the East Cross Route from Hackney to Kidbrooke via the Blackwall Tunnel, and a section of the West Cross Route known today as the Westway.