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Revealed: tech secrets of new 2014 BMW M3 and M4 Coupe

BMW has spent the past four years developing the new M4 Coupe and newly-announced M3 saloon from scratch – all with the intention of making its road-racer range more focused, more able and more relevant to modern motorists. They are faster, sharper and more dynamic, promises the firm, but also greener, smarter and more flexible than ever. The result, believe the engines, is a duo that’s without rival on the market – no other four-seat coupe or five-seat saloon offers this much high performance sports car ability for the money.

Bonneville broadcast will add pepper to the salt

If you've ever been to Bonneville during Speed Week, you know what a thrilling corner of the motorsports world the place occupies: standing out on the endless, blazing-white expanse of salt, hearing the cars before you see them, seeing first the roostertail of salt rocketed into the air, then the tallest part of the rear fin, then the car itself, blasting over the curvature of the Earth, followed by engine cutoff, popping chutes, deceleration and the giddy celebration of driver and crew as yet another record falls. But most people -- those with jobs, kids, responsibilities (where are your priorities, people???) -- will never get a chance to go. So this year, the Southern California Timing Association has made a deal to broadcast audio of the entire Speed Week live, as it happens, direct from the salt, on the fabulous internet.

New Bentley Continental GT Speed revealed

The 2013 Bentley Continental GT Speed has been revealed with 616bhp, new gearbox and improved economy. Arrives October 2012. Regular readers will already know that the new Bentley Continental GT Speed debuts at the Goodwood Festival of Speed at the end of the month, but Bentley has now revealed their new GT Speed ahead of that public debut.