| 100% | CYLINDER | 8 | The power unit of an engine; most cars have 4 or 6 |
| 36% | HORSEPOWER | 10 | Unit of power for engines that starts with an equestrian animal |
| 35% | AERIE | 5 | The largest one of these was in Florida, weighted an estimated 4,000 lb plus and built by one or more pairs of Haliaeetus leucocephalus |
| 35% | MOVINGPARTS | 11 | Working components of an engine ... or what the ends of 18-, 23-, 34- and 47-Across are? |
| 31% | BEETLE | 6 | Volkswagen model which has the record of being the first car to sell 20 million units |
| 31% | OILPUMP | 7 | Part of an engine that lubricates the bearings |
| 31% | PLATOON | 7 | Unit of two or more squads |
| 31% | INSTAGRAM | 9 | Where the photo of an egg has generated more than 50 million likes |
| 31% | CID | 3 | The W16 2017 Bugatti Chiron has the largest production car engine (rated at 487.8) in terms of this (abbr.) |
| 31% | CORVETTE | 8 | One of the most iconic American sports cars from Chevrolet, that has been in production for seven generations |
| 31% | FRIENDSGIVING | 13 | Holiday gathering of one's chosen family ... or an explanation of how the themed answers have been transformed |
| 30% | LSD | 3 | Steve Jobs called it "one of the two or three most important things I have done in my life" |
| 30% | EGOCENTRIC | 10 | Like someone who only has I's for you? ... or an apt description of the answers to starred clues |
| 30% | LAP | 3 | Unit of distance in car racing or swimming |
| 30% | MEMORY | 6 | The power of recalling what has been learned |
| 30% | SUBVERT | 7 | Undermine the power of an institution |
| 30% | TRUNK | 5 | Part of an elephant or car |
| 30% | PLOTS | 5 | Units of land, with or without the first letter |
| 30% | CORE | 4 | Part of an apple or the earth |
| 29% | ABLE | 4 | Having the power or skill |
| 29% | SALVADORPEREZ | 13 | Kansas City Royal who has won 4 Silver Slugger awards, the most of any active catcher in the MLB (2 wds.) |
| 29% | REDCENT | 7 | Smallest unit of purchasing power, in an idiom |
| 29% | ROUND | 5 | Theater-in-the-___ (space in which an audience sits on most or all sides of the stage) |
| 29% | CELLULAR | 8 | Relating to the smallest unit of an organism |
| 29% | FRINGE | 6 | The outermost part of an area or group |
| 29% | KILOGRAM | 8 | SI unit of mass, has the symbol kg |
| 29% | STEER | 5 | Have the wheel of a car |
| 29% | HOBBIT | 6 | Many an inhabitant of the Shire |
| 29% | WATT | 4 | Unit of power, named after the Scottish inventor and mechanical engineer |
| 29% | SPAN | 4 | Unit of length based on the width of an expanded hand |