Tachometer letters (3 letters)

" . . . ___, mio Dio!": Leonora's prayer (4 letters)

Urgency (5 letters)

Old-time cars (4 letters)

Quick race (15 letters)

Dull suffix (3 letters)

Leporine leapers (5 letters)

Speed-trap gear (5 letters)

___ diem (3 letters)

Spot for doodles (10 letters)

Ending with tip or tap (4 letters)

Grin (4 letters)

Whatever (3 letters)

Site for a race (4 letters)

"___ advice?" (3 letters)

Move suddenly (4 letters)

Bullet train type (6 letters)

Insurance figure (4 letters)

Cognizant (5 letters)

Zebulon of exploring fame (4 letters)