Just started looking at the Grand Tourismo. Had a 328D previously. Wondering what year, or engine is preferred? Gas Mileage? Does the bigger engine suffer much on MPG? Also this car felt heavier, more solid for rough weather and seems to offer a ton of room. I never thought I would look at one being an odd duck but liked the way it drove. The seats? Are they identical to the 328D I had from 2014? Did anything really change on the Grand Tourismo? Also, I see lane departure warning is an option (DA package plus). Was lane KEEP ASSIST ever offered?