08 Bmw Z4 Roadster 3.0si 61k Miles Sport & Premium Package Htd Seats 09 10 on 2040-cars

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BMW reveals M4 safety car with innovating water injection system [w/video]

Racing series don't just pick their safety cars at random, or use just whatever car is lying around. These days the car that sets the pace at the front of the pack is typically provided through consideration by a sponsor. In the MotoGP series, that's BMW and its M division, which have served up the Official Car of MotoGP since 1999. What you're looking at is the latest, and it packs some innovative technology on board. Aside from the matte black wrap with BMW's iconic striped livery, upgraded aero kit, retrofitted interior and emergency equipment, this BMW M4 coupe packs a new injection system under the hood. Only instead of injecting fuel, it injects water into the combustion chamber – something that wouldn't usually be recommended, but BMW insists actually aids in the combustion process. The idea is that the temperature of the air being mixed with the fuel inside the engine is usually hotter than ideal, so the system injects a fine mist of water into the collector in order to reduce the air's temperature... sort of like one of those hydrating misters at an amusement park or outdoor mall, but in an even hotter environment. The system brings the temperature of the air down to a more optimal temperature, helping it combust better. The process is said to yield a number of positive effects. For one, it reduces knocking. For another, it can make more out of lower-octane fuel where higher octane isn't available. It also can control the adverse effects of higher ambient temperature on the combustion process. But most of all, it increases output and reduce fuel consumption by around eight percent. Whether that eight percent is worth the added weight of the system – particularly with water pump and a 1.3-gallon tank in the trunk – is up for debate. But we'd imagine that the Bavarian engineers have weighed very carefully. Of course there's also the matter of refilling the water tank, which BMW says would be carried out whenever the safety car is refueled, but in real-world conditions would only necessitate attention once every five top-ups at the gas station. By now you might have guessed that BMW probably didn't develop this system just for the MotoGP safety car, and isn't planning on keeping it confined to the racetrack. Instead it's being tested and demonstrated on the safety car before being rolled out on production models in the future.

On Location in California with BMW and Mini

A mid-winter escape from frigid Michigan to drive a trio of new BMW and Mini products? It'd be a busy couple of days, but you can't argue with Southern California in February. The temperatures in LA, where we drove the Mini Cooper S Convertible, hovered in the mid-80s, and it was solidly in the 70s further north, at Monterey, where we drove the M2 and X4 M40i. The highlight of the trip was Mazda Raceway Laguna Seca, which is a rewarding track to drive in a street car. The M2 was a blast there. The canyon roads above Malibu in the Mini were a close second, but even the lazy drive down the PCH to Big Sur was a blast. More important is the California state of mind we were in when driving all three of these cars. I've spent a lot of time in this state, and it has a complicated relationship with the car – and there's also a huge difference in attitude between the greater Bay Area and Southern California. Ample sun and twisty roads clash with image-consciousness, eco-consciousness, and brutal urban gridlock, and each BMW dealt with that paradox admirably, in its own way. Take a quick jaunt to California with me and check out the locations and experiences that helped form our impressions of these vehicles: the 2016 BMW M2 First Drive, the 2016 Mini Cooper S Convertible First Drive, and the 2016 BMW X4 M40i Quick Spin.

Corvette gets slidey with Britain's best performance cars

Autocar wants to find Britain's best driver's car, and it's challenging a murderers' row of some of the world's best performance vehicles to find out, including the latest Chevrolet Corvette Stingray. All of them were therefore assembled at the Castle Combe Circuit to find a winner.
If it wants to take the crown from this pack of mostly European competitors, the 'Vette has to beat some steep competition. Its challengers include monsters like the Ferrari 458 Speciale, Ariel Atom 3.5R and Jaguar F-Type Coupe. As a further hurdle for the winner to clear, Autocar also has last year's champ among the fighters - the Porsche 911 GT3.
Even if you're not at all interested in the C7, there's still something here for practically any fan of fast cars. The competitors include relative oddities among the pack like the Renault Mégane RS Trophy and Alfa Romeo 4C. Plus, Autocar has some well-positioned microphones that let you hear the Atom wailing like a banshee and the roar of the 458 Speciale. Check out the video to see which one of these all-stars takes home the award this year.