| Answer | Crossword Clue |
|---|---|
| SLED | Gravity-driven vehicle |
| TRIPHAMMER | Gravity-driven tool |
| SLED | Gravity-powered vehicle |
| LUGE | Gravity-powered vehicle |
| SLED | Vehicle powered by gravity |
| DEMO | Test-driven vehicle |
| LIMO | Chauffeur-driven vehicle |
| ICEBOAT | Wind-driven vehicle |
| CYCLECAR | Small motor-driven vehicle. |
| DEMO | Test-driven vehicle (Abbr.) |
| ICEBOAT | Wind-driven vehicle with runners |
