Maybe the wrong place to post this but I have been long wondering why Benz don't put VVT into their engines?

Even the absolute land rocket SLR don't have it....

Is the supercharger in AMG models a better marketing strategy than D.Vanos or Valvetronic?

 

The M111 2.3 liter engine has variable valve timing on the intake valves. The M271 is supposed to have it on both intake and exhaust, although the MBUSA site say just the intake side.

I'm sure the V engines will get it when the next generation is introduced. And does the 500 hp twin turbo V-12 really need variable valve timing?

 

The M111 2.3 liter engine has variable valve timing on the intake valves. The M271 is supposed to have it on both intake and exhaust, although the MBUSA site say just the intake side.

I'm sure the V engines will get it when the next generation is introduced. And does the 500 hp twin turbo V-12 really need variable valve timing?

 

M271 Engine -
Aluminium cylinder head with variable valve timing

Made from high-strength aluminium alloy, the cylinder head in all versions of the new Mercedes engine has 16 valves and double overhead camshafts. Unlike in the previous Mercedes four-cylinder engine, both camshafts are adjustable and have variable valve timing. A newly developed vane-type adjuster with integrated control valve ensures optimum valve timing at all times. This has a favourable effect on torque characteristics under full load as well as on fuel consumption and exhaust emissions. The valves are controlled by means of cam follower with roller mechanism and have a maintenance-free hydraulic valve lifter.