Hi , I haven't used this company but did use stress free airport parking at gatwick who do th same valet parking , judging by the mileage difference it was taken about 4 miles away , usually somewhere like Crawley , the car was returned ok but had been driven aggressively as the estimated miles left had decreased by a lot , and as I drove home in normal fashion the " miles left" started to increase again significantly ,
I wouldn't use this service again , I was just being lazy in taking my car to the car park as we were only away for 3 days , if I leant my car to a friend I know he would look after it and not be tempted to see what it could do ,
I think these guys want to check how long the 0 to 60 takes , I could have told them it was 6 secs , and it's alright for me to do that but not them ! My opinion is that you would be safer letting Clarkson drive it .