The phrase "raised roofline" refers to increasing the height of the roof of a building or a vehicle. It means making the top part taller, creating more space inside.
Sentences with «raised roofline»
Raising the roofline by about 5.9 - inches compared with the i4 has created ample room for big battery packs. (automobilemag.com)
At a time when we so often hear about raised rooflines, higher beltlines, and the «command seating position,» it is unusual for an automaker to talk about the virtues of getting low. (automobilemag.com)
I imagine a design meeting where one poor, pragmatic fellow might've chimed in now and then to say, «Chaps, perhaps we should raise the roofline just a bit to gain a little more rear headroom and visibility.» (automobilemag.com)