test drive

Short definition from Wiktionary

Noun

1. 1
   A sample driving session in a motor vehicle, in order to assess its quality before purchase.
2. 2
   Any preliminary assessment of something through use.

Verb

1. 1
   To take a motor vehicle on the road to assess its quality before purchase.
2. 2
   To establish a preliminary assessment of something through its use.
3. 3
   To drive a motor vehicle in order to evaluate it, especially before potential purchase.
4. 4
   To try out a product before committing to purchasing it.