The microsites for the new BMW M4 Coupe and M3 Sedan are now available online.

Both cars can be configured with the same exterior color pallet. The interior upholstery and trim options are also identical. The M3 Sedan and M4 Coupe can be ordered in Alpine White, Sakhir Orange, Black Sapphire, Silverstone, Mineral White, Mineral Grey, Austin Yellow and Yas Marina.

U.S. pricing will be announced in early 2014, but in the UK the prices for the M3 sedan start at £56,175, while the M4 Coupe starts at £56,653.

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Under the hood, the two Ms feature the return of the inline-6 engine format made famous by BMW M. The all-new, 3.0-liter BMW M3 and M4 engine is approximately 10 kilograms lighter than its V-8 predecessor and packs an even stronger punch. With 425 horsepower from 5,500 – 7,300 rpm, 406 lb-ft of torque from 1,850 – 5,500 rpm, and capable of 0-60mph in 3.9 seconds when equipped with the M-DCT transmission (4.1 seconds with standard 6-speed manual).

One of the primary objectives in the development of the BMW M3 Sedan and BMW M4 Coupe was to ensure the new cars offered impressive race track capability. Hence the presence of a track-specification cooling system, which ensures that the optimum temperature balance for the engine, turbochargers and transmission is maintained at all times.

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In order to accentuate the racing character of the two models in terms of both their technical composition and the fine-tuning of the cars, the engineers worked closely with BMW Motorsport’s professional racing drivers during the development phase. For example, DTM drivers Bruno Spengler and Timo Glock took part in the extensive testing and set-up work carried out at the Nürburgring-Nordschleife circuit.

See the BMW M3 visualizer and M4 visualizer.