1989 Bmw 635csi Base Coupe 2-door 3.5l on 2040-cars

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BMW M3 takes on Mercedes-AMG C63 S in track battle from Evo

Over the last few decades, BMW has firmly established an enviable reputation among automotive enthusiasts by making what many consider to be the very best sporty sedans and coupes in the world. Every few years, a new challenger appears from one of the German brand's long list of competitors, but the result always seems to be the same: Close, but no cigar. The latest challenger to BMW's on-track crown comes from Mercedes-AMG in the form of the C63 S sedan. The AMG has a lot more power, an excellent and balanced chassis and it looks beautiful. But is it good enough to outperform the latest BMW M3? We're not going to spoil it for you. Watch the latest Deadly Rivals video from Evo to find out which competitor comes out on top.

BMW 1 Series prototype packs direct water injection

Just a few months ago, BMW showcased an M4 that was modified to serve as the safety car for the MotoGP racing series. The flashing lights and emergency equipment, however, weren't the only modifications BMW made to the performance coupe. It also packed an innovative new water injection system. And now it's furthering the development of that system by running it in a 1 Series hatchback as well. Revealed at the BMW Group Innovation Days 2015 event, this five-door 1 Series packs a three-cylinder gasoline engine – like the one found in a Mini or i8 – but fitted with the direct water injection system. In this application, the system sprays a fine mist of water – yep, regular old H2O – right into the combustion chamber. While mixing water with gasoline normally wouldn't be recommended, in this case it evaporates immediately and helps cool the engine from the inside, allowing it to run at higher efficiency. That cooler running engine brings with it several benefits. It delivers improved fuel economy and lower emissions, to start. It also allows for an earlier ignition point, higher compression ratio, and higher boost pressure in turbocharged engines, delivering increased output. It even cuts down on engine knocking (where combustion occurs spontaneously), reduces wear and tear on the engine, and makes better use of lower octane levels. If that sounds like a win-win-win... win (we're losing count of all the wins here), it's because BMW just may be on to something. Of course it does require a water tank to be fitted on board, which means added weight, but instead of requiring the driver fill up the water tank, BMW has fitted this prototype with a system that replenishes the water level from the air conditioning system when the vehicle is switched off. So unless it's being driven in a particularly extreme climate, it doesn't even need topping up. Add one more "win" to the list, then. Extra power, improved real-world fuel economy: Direct water injection enhances efficiency. With direct water injection for turbocharged petrol engines, the BMW Group has again succeeded in enhancing the capabilities of conventional engine technology through an ongoing process of refinement and improvement. The precisely controlled injection of water into the engine cylinders produces a cooling effect that boosts power and torque, particularly when operating at or near full throttle, while at the same time reducing fuel consumption and emissions.

BMW Concept 4 Series Coupe proves that 3-2=4

BMW may be calling this 4 Series Coupe a concept, but take a long, hard look - this will be the car that replaces the 3 Series Coupe in the automaker's lineup. Don't let that number change trip you up. This car will have all the basic elements of what makes a 3 Series coupe so popular, and while this isn't technically the production model (there are still come conceptual elements and we don't have powertrain details), it's pretty much what we can look forward to seeing out on the road very soon. And honestly, the naming strategy isn't that weird (though it's still plenty odd) - BMW will be using even numbers for all its coupes and convertibles moving forward. 1 Series, meet 2 Series. And when a 3 Series loses two doors, it becomes a 4 Series.
Dimensionally, the new 4 Series coupe is 1.7-inches wider, half an inch shorter in overall height, and rides on a 2.0-inch longer wheelbase. It's a really pretty thing, with bold, aggressive body sculpting up front, and a rear deck that's sort of like a downsized version of the larger 6 Series two-door. It's all very handsome, but we'll reserve final judgment until we see the production version with its likely smaller wheels and possibly toned-down visuals.
We don't yet have powertrain details, but we fully expect the 2.0-liter turbocharged four-cylinder and 3.0-liter turbo-six to carry over in 328i 428i and 435i guise. Though remember, other 3.0-liter models in BMW's range use 40i designation, so we could possibly be looking at a 440i Coupe, instead. We won't know until the production car officially bows later this year.