The phrase "swooping roofline" refers to a roof design that curves downward in a graceful and elegant manner, giving the impression of a smooth and flowing shape. Full definition
Just based on the sketch that Porsche unveiled, it looks like the 2017 model will ride lower to the ground and maintain the low swooping roofline. (loebermotors.com)
The Byton SUV is an EV that's about the size of a Range Rover Velar, featuring a similarly swooping roofline. (pocket-lint.com)
Once beyond the venom - spitting face, we notice the breathtaking, swooping roofline. (automobilemag.com)