http://translate.google.com/translate?sl=auto&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&eotf=1&u=http%3A%2F%2Fautotechnika.hu%2Fcikkek%2F9759%2Caz-uj-vw-tdi.html direct link w/o translate: http://autotechnika.hu/cikkek/9759,az-uj-vw-tdi.html Some highlights of the new engine generation, not 100% sure if all are on the TDI: exhaust manifold integrated into cylinder head, this makes the whole package smaller and cools the exhaust. This lets the engine run higher combustion temperatures, which increases efficiency on gas engines. I don't know if that's good since higher temps = more NOx, the problem w/diesels. electronic thermostat: this closes on cold engine, makes warm-up much faster and reduces emissions (most emissions are on a cold engine) integrated balance shafts into engine block (gear driven) small peak power bump to 150 on US spec engine, flatter power curve which means more real world power electric VNT actuator instead of vacuum water cooled intercooler (no more intercooler icing on jetta/golf/sportwgen) integrated into the intake manifold compact catalytic converter and DPF filter...this is the one thing that is really ugly: the cat is right outside of the turbo and exhaust flow hits a flat wall, which forces gas to make 2 90 degree turns into the DPF...this is absolutely horrible for turbo efficiency which means significant losses in power and economy. They could have at least made the piping straighter for less resistance.