Hello, I'm thinking of buying a skoda Octavia estate (mark 3, late 2013 reg) but can't decide on the engine type. 1.4 petrol or 1.6 or 2.0 lt diesel. I do 15000 miles a year on average, 60% dual carriageway, the rest urban. My mechanic says the petrol 1.4 petrol is too weak for the size of car and that the 1.6 diesel is better but still too small (needs a sister gear) and recommends the 2 lt instead. I'm not into performance, or speed etc just looking for a solid , reliable and economical car. Any advice would be welcome. Thank you.