After Aston Martin rejected proposals for a replacement for its DB5 from the original DB4 Touring of Milan, the decision was made to focus on their own development car, registered 4 YMC.
Wind tunnel testing, begun in February 1965, showed development was necessary to counteract a tendency toward aerodynamic lift [a result of the fastback styling] causing reduced rear-wheel traction at high speed.
[4] Final development phases relied upon DB5 chassis, suitably lengthened and titled MP 219, with rear lip-spoiler and abbreviated Kammback tail Aston Martin previously incorporated in sports-racing prototypes.
Introduced at the 1965 London Motor Show, the DB6 was already a dated design[5] notable as the first model engineered following a factory relocation from Feltham to Newport Pagnell.
Though fashionable – the rear-end Kamm-styled design was similar to the Ferrari 250 – it did not prove popular with conservative, tradition oriented Aston clientele when the DB6 was introduced.
[7] Other highlights include adopting front-door quarter windows, an oil-cooler air scoop low on the front valance, quarter-bumpers at each corner, revised tail-lamp clusters.
Available as an optional extra for the Mark II was AE Brico electronic fuel-injection combined with the higher compression ratio cylinder head.
The car was Roman Purple over Natural hide, LHD with factory AC, Borg-Warner automatic gearbox, LSD, Blaupunkt Köln radio with power antenna.