A few years ago we drove a Prius hybrid flat-out round the Top Gear testtrack for 10 laps.
Times, Sunday Times (2014)
The next morning I was down at the Top Gear testtrack and it was the sort of day we dream about.
Times, Sunday Times (2013)
Google said that its software had learned how to deal with cyclists by observing them on roads and testtracks.
Times, Sunday Times (2016)
Definition of 'track'
track
(træk)Explore 'track' in the dictionary
countable noun
A track is a piece of ground, often oval-shaped, that is used for races involving athletes, cars, bicycles, horses, or dogs called greyhounds.
Definition of 'test'
test
(test)Explore 'test' in the dictionary
verb
When you test something, you try it, for example by touching it or using it for a short time, in order to find out what it is, what condition it is in, or how well it works.