Test Tracks at Millbrook's Proving Grounds | Track Hire the UK and Finland | Millbrook
9 videos • 407 views • by Millbrook Test Tracks at Millbrook's Proving Grounds | Track Hire the UK and Finland | Millbrook Millbrook Proving Ground in the UK contains an unrivalled combination of tracks suitable for virtually every vehicle test. Millbrook's proving grounds in Finland are home to superb indoor and outdoor winter test tracks.