I happen to find a picture of this car in "Classic and Sportscar" from June 1995, page 90. The car has the same shape, the same license plate, but also heavy bumpers, a 'real', curved split windscreen, outside door handles and chrome stoneguards on the rear wings. There's another pic of an Alvis 14 sports with F.J. Bidée body at 1948 Brussels show (the car with a complete cocktail cabinet in its door...).