Well of course the racing team could be described as 5th Avenue Racing Team, rather than Fifth Avenue Racing Team
It appears that Mike Wilder entered the Lotus 12, chassis 359 at another circuit in 1959 as well as Snetterton.
Vanwall Trophy - Snetterton, 2 races 10 laps and 20 laps (54.20ml: 27.10ml) 26-07-1959
Race 1: Vanwall Trophy (Single seat Racing Cars) 20 laps
No 4 Steve Wilder: 5th Avenue Racing Team Lotus 12-359
SG: n/a Result: 6th, 20 laps
Race 2: (Formula Libre)
SG: n/a Result: 3rd, 10 laps
Raleigh Trophy (Formula Libre) - Mallory Park heats 7 laps: final 20 laps (9.45ml: 27.00ml)
No 90 Steve Wilder: 5th Avenue Racing Team Lotus 12-359
SG n/a Result: 3rd, 7 laps, 6'57.0"
SG: (7th) Result: 5th, 20 laps, 19'21.4"
Interestingly in 4th place was Jim Clark in the Border Reivers Lister BHL-5 (Jaguar 3.4 litre)