Vintage Horticultural and Garden Machinery Club

It doesn’t really look home made to me, and looks as though it was rather expensive when new, those wheel motors can’t have been cheap.
The chap I bought it from was clearing an elderly neighbours place which is where its from, and the elderly gentleman said it came from the Coventry climax factory when it closed in 1986 and has been in his barn ever since, maybe someone knows someone who worked at coventry climax who may remember this machine and maybe shed some lift on its identity?