XSeries-forum

I'm in the market for an X3 G01, but want I do t know what's the best engine to go for I'm after the most fuel efficient really. Currently own a plug in a3 which is averaging 70mpg as most our trips are less than 5 miles daily.. but my god has it lost some money.
I was looking at the 30e as a plugin

If be interested if you guys can help me decide, and tell me what engines you have and what mpg you get please.around town and on longer trips.

Thanks