The Aston Martin DB9 is available in two forms Coupe and Volante convertible each with 6.0 L 450 brake horsepower (335 kW) V12 locomotive taken from its sister automobile the V12 Vanquish.

Certain features of Aston Martin DB9 locomotive are:

• The engine is all alloy, quad overhead camshaft, 48-valve, 5935cc V12
• It contains stainless steel by-pass valve exhaust system
• The engine is full of visteon engine management controlling fuel injection, diagnostics, ignition and misfire detection system.
• It has compression ratio as 10.3:1
• Acceleration is 0-60 mph in 4.9 seconds and maximum speed of 186 mph (300 km/h).
• It has maximum power of 335 kW (450 bhp) at 6000 rpm and maximum torque of 570 Nm (420 lb ft) at 5000 rpm

The Aston Martin coupe is converted to the DB9 Volante version. It is powered by the similar 5.9 liter, DOHC 48 valve V-12 engine as per the DB9 and is auctioned with 444 horsepower.