BMW M4 GTS Revealed With Water-Injected Turbo Six And 368kW Photo:
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Tony O'Kane | Oct, 07 2015 | 6 Comments

Remember that water-injected M4 pace car that BMW trotted out at the opening round of the MotoGP championship this year? Well it's got a production version now, and it's called the BMW M4 GTS.

Like the E90 M3 GTS (and the E46 GTR and E36 GT before it), the M4 GTS is a track-ready yet road-legal performance flagship that sacrifices some (well, many) creature comforts in the pursuit of scintillating laptimes.

And it's brutally quick. According to BMW, the GTS will lap the Nurburgring Nordschleife in just seven minutes and 28 seconds - slightly faster than the Nissan GT-R's first lap record of 7:29 back in 2008.

Helping it achieve such speeds is a modified version of the regular M4's 3.0 litre turbo inline six, spitting out 368kW and 600Nm thanks to the adddition of a water injection system.

The system works by spraying a fine mist of water into the M4's inlet tract, which then absorbs heat from the air to reduce the chance of engine-destroying pre-ignition (or 'knocking'). When the fuel/air/water mixture is ignited, the water also turns to steam to create a bigger bang.

The end result is 51kW more power and 50Nm more torque than a vanilla M4, allowing the M4 GTS to race to 100km/h in just 3.8 seconds - 0.3 seconds quicker.

A seven-speed twin-clutch is the sole transmission offered for the GTS, and has been tuned specifically to suit the uprated engine.

Besides bulking up on muscle, the M4 GTS has also been on a diet. BMW has pared the M4's kerb weight back to 1510kg by fitting lightweight carbon-fibre bucket seats; a stripped-out centre console, door cards and rear cabin furnishings; a titanium exhaust muffler plus a carbon-fibre bonnet and boot lid.

Even the interior door handles have been deleted, replaced by a fabric strap to save weight. Rear seats? Who needs 'em.

An optional roll cage adds some weight back (and also comes with a six-point harness and fire extinguisher), but overall the M4 GTS is some 27kg lighter than its vanilla sibling.

Helping it stick to the road are a set of Michelin Pilot Sport Cup 2 tyres wrapped around 19-inch front wheels and 20-inch rear wheels, with three-way adjustable M coilover suspension and carbon-ceramic brakes lurking behind.

An aero package consisting of a carbon-fibre front splitter, carbon fibre rear diffuser and carbon fibre rear wing provides the downforce needed to keep it glued at race speeds.

Only 700 will be built, and with North America now on the distribution list for the GTS (it missed out on the previous-gen E90 M3 GTS), BMW expects many of those to be sold in the USA.

However, local BMW PR chief Lenore Fletcher confirmed to TMR that the M4 GTS will also be built in right-hook form, and that an Australian release could be on the cards if enough rev-heads put their hand up.

"Australia is a very high-performance oriented market," Fletcher said.

"We're going to try to bring some of them to Australia. It's not a done deal, but we're definitely interested."

The 2016 BMW M4 GTS will make its first public appearance at the Tokyo Motor Show later this month.

MORE: BMW News and Reviews

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