| 100% | BALLJOINT | 9 | *Car part that works in a similar manner to the human hip |
| 100% | BALLJOINT | 9 | Car part that works in a similar manner to the human hip |
| 42% | TYRE | 4 | Car part that needs air to work (how it's spelled in Britain) |
| 39% | CLUTCH | 6 | Device in a car that transmits the drive from the engine to the gearbox |
| 38% | THIGH | 5 | That part of the leg between the hip and the knee in humans |
| 37% | TIRE | 4 | Car part that's vulnerable to a puncture |
| 37% | HOOD | 4 | Car part that the British call a "bonnet" |
| 36% | TIRE | 4 | Car part that gets changed in a pit stop |
| 36% | BONNET | 6 | Car part that's called the hood in the US |
| 35% | COAL | 4 | ___ car, red train card in the board game "Ticket to Ride" that is named after a fossil fuel |
| 35% | PAINTERLY | 9 | In a manner similar to a brush-wielding artist |
| 34% | BLED | 4 | What I always did to the car brakes after changing the fluid in those days when I was a DIY car guy (I no longer am!) |
| 34% | DELOREAN | 8 | DMC ___, car model that was modified into a time machine in "Back to the Future" |
| 33% | SPINE | 5 | Book part that is also present in the human body |
| 33% | NAENAE | 6 | Counterpart to the "whip," in a viral hip-hop dance |
| 33% | DELOREAN | 8 | Car that becomes a time machine in "Back to the Future" |
| 33% | FENDER | 6 | Part of a car that covers the wheel well |
| 33% | NUDE | 4 | Second single from Radiohead's album in 18a, that had a different title originally and was supposed to be part of the album "OK Computer" |
| 33% | DONTYOUWANTME | 13 | The Human League song that was a No. 1 hit in 1982 (4 wds.) |
| 33% | HEADREST | 8 | Small cushion fitted to the top of a seat in a car |
| 33% | PERIHELION | 10 | *Point in a planet's orbit that's closest to the sun |
| 33% | CLUES | 5 | Parts of a crossword that the constructor works on last |
| 33% | HOOD | 4 | Part of a car that British people call the "bonnet" |
| 33% | WAISTBAND | 9 | The part of a garment that loops around the hips |
| 33% | LEAF | 4 | Part of a tree that changes color in the fall |
| 32% | LEMONS | 6 | Cars that are in the shop a lot |
| 32% | SUNROOF | 7 | The top of a car that can be opened in summer |
| 32% | LEAF | 4 | Part of a tree that might fall off in the autumn |
| 32% | RBI | 3 | In baseball, the plays that allow a run to be scored |
| 32% | THEVOICE | 8 | American reality show hosted by Carson Daly, which works in a format similar to 21-Across: 2 wds. |