Not sure if any of the many I have ownd over the years would be considerd a "classic" but some have surviving brethren that might be seen at vehicle rallies now.
Of these:
Sharps Commercials, Bond "Minicar". (Three-wheeler, its single front wheel driven by a modified motorcycle, 250cc, 2-stroke engine + gearbox. The gear-change pedal shaft was linked to a column-change lever. Aluminium and fibre-glass body on lightweight steel chassis).
Early-ish Reliant 'Robin' (Three-wheeler with its own make but conventional design of, aluminium-block, 4-stroke-engine, 4-speed gearbox and rear-wheel drive. Fibreglass body on steel chassis)
Two Series Two Landrovers (one petrol, the other diesel.
Morris Commercials-built, ex-ambulance (2.2l petrol engine)
Three GM / Vauxhall- Bedford CA vans (1600cc petrol engine; 4-speed gearbox with column change. One was a genuine "Dormobile", the caravanette brand by, if I remember aright, Devon Conversions.)
Bond "Minicar" ( slightly different from my edition) at a vehicle preservationists' rally:
'Dormobile' conversion of Bedford CA van - mine had the standard, rigid roof; and was of the later van form with deeper windscreen: Despite appearances the vehicle was not front-wheel drive. The engine and gearbox werwe mounted longitudically to drive the rear axle, but placed partly in a casing extending back between the footwells, giving that foreshortened nose.