I thought they were discontinuing the Shark Blue Metallic? (Which is the coolest color!
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Yuck, I hoped VW would come to their senses and stop sticking us with that pile of garbage 2.5L they put in everything. A 1.4 or 1.8 TSI would be a much better base engine giving it some much needed efficiency.
Powertrains are changing. The current powertrains aren't part of the MQB platform structure. Doesn't mean they can't be made to fit, but the whole thing with MQB was to keep things interchangeable and that includes modular engine layouts.
The 1.4 TSI is a new design, not the same as the previous 1.4 TSI, to use the new modular engine layout. I doubt we'll see it in North America. (Jetta hybrid will use it but I've heard it will be the "old" 1.4 TSI, not the new one with cylinder de-activation ... too bad.)
The 1.6 and 2.0 TDI engines are also new designs using the new modular layout. All of the turbocharged engines, gas or diesel, are using air-to-liquid intercoolers, and that pretty much precludes the use of the older engine designs (with air-to-air intercoolers) unless they want to do something special to accommodate them, which would defeat the whole purpose of the MQB modular layout.
The 2.5 is supposed to be going away, to be replaced with the new EA888 1.8 TSI, and this has already been announced and it's in the same timeframe as the planned US introduction of the Golf 7, so it would stand to reason that the 2.5 goes away and the new 1.8 TSI shows up.
I'm pretty sure we'll see the 1.8 TSI as the base engine, the new 2.0 TDI available, and the 2.0 TSI as the new GTI engine.