The chart above (click to zoom) summarises speeds for WSC cars, by class.
Update: this chart has been corrected.
The reliability gem goes to team 11 (Bochum University of Applied Sciences). Their thyssenkrupp SunRiser has clocked up over 16,000 km, I understand. It drove the entire 3022 km of the World Solar Challenge in 2015, and again this year. It came 3rd at iESC 16, 2nd in the iESC 18 Cruiser class, 7th at Albi Eco 18 (with 100 laps), and 2nd at Albi Eco 19 (with 119 laps). And it’s still the sexiest Cruiser-class car around.
The disco lights gem goes to team 40 (Eindhoven). Eindhoven also scored highest on Cruiser-class efficiency, carrying an average of 2.63 people for 71.24 kWh of external energy. The car also has an understated elegance. And the disco lights serve a serious purpose: they show battery charge, and the ability of Stella Era to act as a mobile charging station.
And a special best use of tape gem goes to team 88 (Kogakuin), with team 70 (Sonnenwagen Aachen) a close second.