telltale n. on an automobile’s instrument panel, an indicator which relays information about the vehicle to the driver. (source: Double-Tongued Dictionary)
whip n.— «Trains and walking when it comes to the daily grind. Whips when it’s free time. I can understand the appeal of pushing your own whip ‘round town though. I brought a car back in March and I’ve gone overboard putting money into it.» —“Re:...
groove n. an ideal driving path on a car-racing track. (source: Double-Tongued Dictionary)