BMW i8 testing continues and this prototype is the most revealing we’ve seen yet.

The thick rear camouflage has been dropped to reveal the production model’s rear shape and design. It mostly retains the look of the i8 concept model. We also get a look at the turn signals, reverse light position and the LED bars of the tail lights. The front now reveals a large portion of the headlights.

For the first time we get a look at the i8’s production wheels, a 5 (or 10 depending how you look at it) spoke wheel with a futuristic and asymmetrical spoke design.

The i8 is expected to boast 354hp / 500Nm torque, 0-62 mph in approximately 4.6 seconds, top speed of 155mph, 78 MPG (european test cycle), up … CONTINUED

The reveal of the all new 2014 BMW X5 (F15) is imminent, but testing continues on the F15 X5 M.

Testing on the F15 X5 M began last year [first sighting], but current mules have now dropped much camouflage. What’s revealed are the expected signature M components - huge front air intakes, aggressive sideskirts and rear diffuser, blue M brakes, and cross drilled rotors (the first for any X5 model). We also get a better look at the quad exhaust pipes which, unlike the current X5 M, feature a new angled design (like we’ve seen on the F82 M4 prototypes).

The F15 X5 is expected to weigh less than the current E70 X5 and ride on a modified version of the F10 5 series chassis. As for … CONTINUED

We have added even more revealing spy photos of the 2014 X5 (F15) interior.

We’ve gotten another look at the F15 X5’s interior and it provides the best idea yet of what it will look like once revealed.

Interior / Wheels

The F15 X5’s general dashboard design takes after the F30 3 Series with a multi-layered look. Compared to the current X5 (E70), the next X5’s dashboard has also become more driver-centric, a design element seen in recent new BMW models. It will also be more upright compared to the current X5’s dashboard, which angles and curves away sharply from the driver and passenger. See a comparison image below.

Following on the design of the newest BMW models, the next X5 will feature a large free-standing navigation/infotainment LCD screen. This screen looks to be the 8.8 inch panel used in the latest … CONTINUED

All BMW F82 M4 coupe prototypes spotted have been in black, until now. We spotted this Silverstone (?) looking F82 M4 prototype in Garching, where BMW M is headquartered.

Have a look at how deliciously wide the rear fenders are!

If you couldn’t already tell from the torrent of spy photos featured on the BIMMERPOST homepage, manufacturer testing season has opened on the Nurburgring.

On the track today was this F32 4 Series (435i) with M Sport package revealing for the first time the aggressive shape of the M Sport front bumper. Compared to the F30 3 Series M Sport front fascia, the 4 Series M Sport bumper is more angular, with air vents that angle upwards and expands as it gets closer to the outside of the front bumper. The side shot also shows that it incorporates splitter fins which extend quite far out, adding to the aggressive look.

The lighter camouflage also reveals what looks to be Air Curtain vents in the M Sport … CONTINUED

We have added photos from the latest spotting of the BMW M4 Coupe (F82), together with a short clip from testing on the Nurburgring track.

Alpina trotted out its upcoming B6 Gran Coupe for some Spring time testing and we’ve caught it fitted with Alpina front lip, trunk wing, wheels and exhaust system. The aero parts remain unpainted and no Alpina rear diffuser/bumper has yet been installed.

For an idea of what the specs may be for the B6 Gran Coupe, the 2013 Alpina B6 Coupe features 540hp / 730nm (538 lb-ft) torque, with a top speed of 334 km/h - based on BMW 4.4L V8 motor. How do those specs stack up against the M6 in the performance department? Check out the Sport Auto comparo results below.