Wiseco pistons posted a great article explaining the purpose and function of the second piston ring. Many engine builders and engineers read this site and already know these details but for the rest of us who aren't experts there is some great technical piston and ring info in the article below. ...

These are two very potent performance SUV's. Part of their appeal is that they blend big power with relatively light weight. SUV's are very bloated for the most part but the beauty of the Stelvio and GLC is power to weight ratio. ...

It is great to finally see some independent results for Turbo Technik Hamburg (TTH) turbochargers. This W213 Mercedes-AMG E63 S M177 benefits from the TTH hybrid turbocharger upgrade along with ECU tuning from Eurocharged canada. ...

Nice to see some higher powered BMW S55's and Mercedes M177's go at it. The W205 C63 AMG S you see in the video has the Weistec W.4 package. You have seen it featured on BenzBoost and it runs 140+ trap speeds in the 1/4 mile. ...

This network is critical of Carwow videos. Are they featured from time to time? Yes. Why? Because Carwow benefits from having certain cars available that never were sold in the US market plus an airstrip they seemingly get to use whenever they want to (poorly) test cars. ...

Weistec has several tuning packages for your AMG M177 4.0 liter V8 from mild to wild. That includes the W213 Mercedes-AMG E63 S of course which keep in mind has all wheel drive. This E63 gets the Weistec W.3 M177 turbo upgrade package. ...

This is fun to see as it is a little different than your typical magazine drag race. For one, the cars are all wagons. Secondly, the Audi C6 generation RS6 is used which has a twin turbo 5.2 liter V10 plus a tune on it. Sadly, the US never received an Audi model with this motor (unforgivable). ...

Mercedes-AMG is playing the internet well in leaking their own car. This sometimes happens accidentally but this feels deliberate. Regardless, Mercedes-AMG posted the C118 CLA45 AMG rear end in their German configurator. ...

This is something a bit different hitting the market. Say hello to ALTi who specializes in CNC machined wheels. This is a new wheel company that has been in the works behind the scenes for some time. The difference with ALTi is due to the quality of the machining which means hand finishing is not necessary. There is no hiding of flaws this way. ...

Some nice highway pulls here between two German V8's with very different power adders. The E92 M3 is well known with the S65 4.0 liter V8 that revs to 8400 rpm. The M157 in the E63 is larger at 5.5 liters and turbocharged but it is a stump puller with tons of torque and is hardly a high revver. ...

Well, that is more like it! The W213 generation E63 AMG S for some reason is lagging behind its competitors as far as aftermarket performance. Perhaps some of it is the transmission tuning but finally we have some stellar results. ...

Smart cars are prevalent in Europe and especially in small cities with tight roads. For those who need more space or safety than a scooter the Smart car fills a role. It just does make much sense for the USA and Mercedes-Benz acknowledged this by ending the brand in the USA. ...

BoostAddict is seeing more and more posts about chemical direct injection fuel system cleaning solutions. Color this website skeptical but over the years some pretty bad carbon build up (namely in Audi 4.2 FSI and BMW N54 motors) was posted and it took a direct physical solution to clean off the carbon deposits. ...

A well done independent comparison here by the Russians of the AMG GT63 S Coupe versus the BMW F90 M5 Competition. The mid-size luxury performance sedan offering from AMG and BMW is more alike than ever with the cars being quite similar in their approach to performance. ...