noun
tuned car; tuner car; modified car
Wasei-eigo from English 'tuning car'. Refers to a car that has been modified for performance or appearance, often with aftermarket parts.
wasei-eigo (Japanese-coined English), from tuning car
彼はチューニングカーに乗ってサーキットを走るのが趣味だ。
His hobby is driving his tuned car on the circuit.
この
This shop specializes in parts for tuner cars.