In January 1972, work started on a comprehensive facelift of DBS V8, the main visual cue being the adoption of single headlamps and a revised front grille. Known as AMV8, the car retained the Bosch mechanical fuel injection system until August 1973, when four twin-choke Weber carburettors were fitted, a bigger bonnet bulge to clear the carburettor air box, and a re-designed fuel tank to allow more luggage space.

First shown at the Birmingham motorshow in 1986 The Aston Martin V8 Volante convertible with a design feature being the power bulge in the bonnet from the series 4 was produced for three years with 167 built of which 58 were left hand drive destined mainly albeit with the less powerful Weber Marelli fuel injection system for the american market and 109 cars with the 580X-pack’ 400+ bhp enginefor the european market 33 LHD and 76 RHD for the UK market with a top speed in excess of 160mph

The Aston Martin DB6 is a Grand Tourer with a top speed of 150 mph accelerating 0-60mph in 8.4 seconds.
The DB6 had optional air conditioning and power steering. 
It had more headroom than its famous DB5 predecessor and luggage space and was available as a 5-speed manual transmission or a 3 speed automatic gearbox.