This is the new BMW M4 which is powered by a twin-turbo 3-litre straight six making 425 hp and 406 lb-ft of torque which is 11 hp and 111 lb-ft of torque. While that is a healthy upgrade, specially the increase in torque, the engine noise is rather disappointing.. Below is a video showing a 2015 BMW M4 start up and rev. You can actually hear someone in the background saying that it sounds like a Prius. Many diehard M3 fans and auto enthusiasts in general were bemoaning the switch to a turbo engine and now there's another disappointment, the engine noise. If you have a laptop, I recommend plugging in good speakers, preferably with a woofer, or at least head phones because laptop speakers will make it terrible. This is the new BMW M4 which is powered by a twin-turbo 3-litre straight six making 425 hp and 406 lb-ft of torque which is 11 hp and 111 lb-ft of torque. While that is a healthy upgrade, specially the increase in torque, the engine noise is rather disappointi...
I'm finishing up a comparison post (link to introduction: Intro: Focus RS vs Golf R vs WRX STI vs Evo X ) and, throughout the post, I realized that I have to go off topic a lot to talk about how each type of differential changes the way the car drives. As a result, I thought I'd write a separate post to go into more detail before I post the comparison to keep it more focused on the cars and avoid veering off topic too much. By saying "Limited Slip Differentials" in the title, I am including torque vectoring diffs because, although current conventional terminology treats them differently, a torque vectoring differential is, in essence, a very sophisticated limited slip diff (LSD) that can be manipulated to actively help the car handle better. And while none of the cars in the comparison use open (without help from the brakes) or non-gear mechanical LSD’s, I’ll briefly discuss them so that the post is more inclusive. I’ll only focus on using power to help the...







