Sold the Z yesterday

gsxr750

You must be getting a 2011 335D , it appears bmw stopped making it for 2012

I had a turbo 300zx anniversary edition , and the previous owner had the turbo rebuilt 2 times in only 40k miles.

My brother had a turbo diesel ford 2007 f350, he did the turbo remap and bigger exhaust, started having excessive carbon build up in the intake, and turbo, also started having injector problems. Major problems at only 30k miles.

The simple facts with turbos,
1. Turbine is proned the early failure due to the tremendous temperatures they operate at and also get impeller wear and bearing failure.
2. Internal engine components are subjected increased stress, due to the increased power made by the turbo.
3. Doing remapping and increasing HP out to the turbo, you have to make sure by doing so that you are not exceeding the design limits of the engines internal components.

I would always take a larger cubic inch normally aspirated gas engine over a small high output turbo any day of the week.

Diesels do have their place for towing or in industrial or 18 wheelers etc. but not in cars.

Then you have the added cost of diesel over pump gas.