I totally believe just a tune to open up the powerband above 2900rpm's would make it a new animal. Someone mentioned it should have a 'Power' button that gives you a little more passing power for a few seconds, but I didn't find it.
Another little feature. It accepts the 'medium duty' larger diesel fuel pump nozzles. So, ya know, if you want to fill up the tank in like 10 seconds haha.
What size is the engine?
I had a 2011 tdi golf that was a blast, after all the suspension mods I did, then I tuned the engine and did a full exhaust and tuned the DSG transmission and it was pretty damn fun and sounded pretty killer too, one of the reasons I got rid of it was the lack of aftermarket support though. Sure there were/is a small tune for it, but basically it was the euro file, and it was only like a 28hp and 55ft lb bump, and increased throttle response, the full exhaust and intake with low pressure egr delete and dpf delete added another 18-20hp. With all of that I could beat stock mustangs and camaros, smoke a gti with ease and basically have a lot of fun and still get 32mpg burning off the tires at every stoplight or get 47-52 mpg on the freeway cruising. But for the $3000 dollars it took to get appx 45hp and 70ft lbs, it would've been cooler to be able to put that money into a twin set up and nozzles. Not to mention the 2000+ I had in suspension
That's when I looked into "real" tuning, and it was not there, neither was the ability to get upgraded injectors, or add a bigger turbo, or twin the smaller turbo, the room was there for a twin in the engine bay, the little 2.0tdi had a ton of potential, but the tuning was just not available for such upgrades. There is a company in Europe that will do it, but due to recent EPA crackdowns you have to register your vehicle as a race only vehicle with the state you live in before they can accept your work order, then they send notice to your wherever it is that said work has been done. BIG BROTHER
All in all the golf was a fun car after its mild tuning and exhaust work and suspension mods, it would peel tire into and almost through third, it had plenty of torque it just needed more horsepower, I imagine the chevy cruise will not be much different, in all areas