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...
2012 Boss 302 on square 305/30/19 RE-71R's at AMP - Graham MacNeil © For better or for worse, I have heard and read so much about RE-71R's. Everyone swears by the grip but complains about the wear. Generally speaking, the pros are: 1. They grip as well or better than most R comps. 2. They don't wear as quickly as R comps if driven occasionally on the street. 3. They work better in the rain than R comps. The cons were limited to overheating quickly when used on track (being an autocross tire) and wearing too fast on heavy cars like mine. In the popular 200 TW category, they are faster than the popular Hankook RS-4's and BFGoodrich Rival S's according to published Tire Rack Tests. According to plenty of reviews, they are also faster than well established R comps like R888R's (which don't seem to work too well on heavy cars anyway) and the venerable NT01's. But I was still hesitant for a while until I talked to a tire tech support gentleman...







