1. test of the roadworthiness of a vehicle one is considering buying;
VERB (1)
1. test a vehicle by driving it; - Example: "I want to test drive the new Porsche"
WordNet (r) 3.0 (2006):
test drive
n 1: test of the roadworthiness of a vehicle one is considering
buying
v 1: test a vehicle by driving it; "I want to test drive the new
Porsche"