BMW has announced prices for the forthcoming 630i and 535d models.

Powered by the world’s lightest six-cylinder engine, the BMW 630i Coupé is priced at £45,255 on-the-road, while the 630i Convertible with its fin-structure roof costs £50,655. Pricing for BMW’s flagship diesel, the 535d, starts from £36,575 for the Saloon, with the Touring costing £38,600.

The BMW 630i Coupé and Convertible specification mirrors that of the more powerful 645Ci model, apart from the standard five-spoke 17-inch alloy wheels. This means owners of the 258bhp 3.0-litre petrol-engined GT will benefit from Dynamic Stability Control, a six-speed manual transmission, bi-xenon headlights, Park Distance Control, Dakota leather interior and electrical seat adjustment, all of which are standard. The 630i accelerates from zero to 62mph in 6.5 seconds (6.9 seconds for the Convertible) before reaching an electronically limited top speed of 155mph.

BMW 535d is available in either Saloon or Touring variants and delivers 272bhp and 560Nm of torque through its variable twin turbocharger arrangement mated to the 3.0-litre engine.

Both the BMW 630i and the 535d will be launched in the UK in October.