Across
1. Items once found in tires
4. Auto-racer’s ride, hopefully (4,3)
8. Maintenance type in owner’s manual
9. The United Auto Workers, for example
10. Vehicle velocity
11. Add air to a tire
12. Coolant passages around engine block (5,6)
17. Post-1977 tire-sizing system (1,6)
19. Component in disc-brake system
21. Streets, boulevards, etc.
22. Nationality of Ferrari cars
23. Cargo retainer for trailer or pickup (3,4)
24. Footwear in drum-brake system
Down
1. Name on Andy Green’s ’97 supersonic car
2. "Pink Cadillac" singer Springsteen
3. Stub-axle synonym
4. Carburetor successor (4,9)
5. NASCAR slang for slightly used tire
6. Automotive A/C type, ____ control
7. Intake- or exhaust-manifold tube
13. CAFE is Corporate ____ Fuel Economy
14. Tire’s basic structure, a.k.a. casing
15. Massachusetts’ "____ of America" plates
16. Circular sealing devices (1,5)
18. Hazzard Co. cop car driver, ____ P. Coltrane
20. Wiper-blade brand since 1917