2007 Bmw Z4 M Roadster Convertible 2-door 3.2l on 2040-cars

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BMW already considering four cylinders for next M3

The cylinder count in BMW's M3 has fluctuated over the years. The original M3 debuted in 1985 packing a 2.3-liter inline-four, but subsequent models went with sixes until the outgoing generation upped the cylinder count to eight. With its latest model, BMW has dropped back to six cylinders with a pair of turbos taking the place of the extra pistons. But the next M3 sedan and M4 coupe could go back to the model line's roots with a four-cylinder engine.
Speaking with BMW M product manager Carsten Pries at the launch of the latest M3 and M4 in Portugal, our Aussie compatriots at Motoring.com.au report that "you could see a future [M3] powered by a four-cylinder engine." Offsetting the reduction in cylinders, the lighter engine would benefit the vehicle's weight and balance, thus enhancing performance.
We wouldn't expect the next M3 and M4 to lose any power in the process, though: Output in the M3 has only risen over the generations, from 192 horsepower in the four-pot original to 282 hp in the six-cylinder E36, 338 hp in the six-cylinder E46, 414 hp in the V8 E90 and 425 ponies in the new turbocharged six-cylinder F80 model. With that latter model having just debuted, it'll likely be a good six or seven years before the next version comes along, giving BMW plenty of time to settle on an engine - however many cylinders and turbochargers it has. In the meantime, you'll have to forgive us for taking a romp down M3 memory lane in the fresh gallery of images above.

BMW 3 Series eDrive plug-in hybrid spotted in development

BMW has shown its commitment to the development of hybrid and electric powertrains in recent years, with vehicles in its ActiveHybrid range, electrics like its BMW ActiveE and range-extended EVs like the i3 and i8. Plug-in hybrid-electric vehicles are clearly top-of-mind for the German automaker. We saw spy shots of the PHEV BMW X5 eDrive prototypes about a year ago, and now our shooters have come through with a 3 Series-bodied version of the technology, as well.
In addition to the obvious "Hybrid Test Vehicle" designation you see on the bodysides of this 3er, we also note that a second 'fuel cap' - presumably hiding the electric charge point - is in evidence. It's a fairly safe assumption that this 3 Series is making use of the same turbocharged four-cylinder engine and electric motor configuration that the X5 eDrive used. In the case of the X5, that meant a top electric-only speed of 75 miles per hour, with a range of just under 20 miles, and 0-62 mph in under 7 seconds. With considerably lighter, compact sedan bodywork clothing the PHEV drivetrain, we'd guess that the 3 Series eDrive could improve on each of those numbers.

BMW-Toyota partnership to spawn hybrid supercar

BMW and Toyota inked a partnership some time ago to develop green technology, and while we were excited by the idea of a reborn Supra with BMW's carbon fiber reinforced plastic slashing the curb weight or an ultra-efficient, hybridized 1 Series, the joint efforts have been rather limited. That's set to change, though, according to a report from Australia.
Motoring reports that the partners have come to terms on a sports car. And not just any sports car, but a lightweight, hybridized model, with a six-figure price tag. Lending a bit of street cred to that idea is the site's claim that Toyota is currently carrying out durability testing on the BMW i8. According to the site, the new model will slot into the spot left by the Lexus LFA, although based on the language used, it's unclear if this is the Tokyo-bound vehicle we mentioned several months ago.
Details on this potential car are limited, although Motoring claims it will use a Toyota hybrid system mated up to a BMW gas engine - likely the 4.4-liter, twin-turbo V8 found in the M5 and M6. That sounds pretty amazing to us, but we'd still advise taking this with a grain of salt. What would you like to see out of a joint-venture supercar from Toyota and BMW? Let us know in Comments, and have your say on the prospects of a hybridized, twin-turbocharged V8.