The replacement kit acquired by Lionel after UDN went up in flames actually became the so called 'Evo' Grp5 replica.
This particular car started life as Lionels Road car and evolved into a racecar under the Hennessey Racing banner , raced by Chris Snowdon and Tony Soper amongst others.
It was acquired by Graham Scott and raced in the Autoitalia series.
It was crashed at Donnington (?) and later brought to Cheshire for restoration/repair, but as I understand it costs and schedule of work could not be agreed and the project was abandoned.
Last time I saw it it was in lockup garage in Dorset. I did approach the owner with a view to acquiring it at that time but didn't get a response. I was told a few years back that it had been scrapped but obviously not.
There may even still be a valid V5 for this car somewhere.