A "fastback roof" refers to the sloping design of a car's roof that smoothly transitions into its rear end, creating a sleek and stylish appearance. Full definition
Unlike the other evenly numbered SUVs in the BMW lineup, the X4 and X6, the X2 doesn't get a coupe - like fastback roof. (automobilemag.com)
No big surprise there — Nissan will aim to keep the design appealing to traditional buyers — but one interesting departure from the looks of the current model will be a more fastback roof profile, leading to a relatively tall trunk lid with a spoiler bill. (Autoweek.com)
The signature feature of the MX - 5 RF is the retractable fastback roof which doesn't require manual opening or closing. (hileymazdaofarlington.com)