re: Riley Sprite

>> Hmmm... You are probably thinking of the first MG Midget, introduced in 
>1928... 

  No I am thinking Austin "S" ("Seven"?).  Apparently there was a supercharged 
version in 1930 also.
  My info is not detailed because I got it from S.C.H. Davis' racing 
autobiography called "Motor Racing", published in 1932.  It doesn't go into 
detail about all his and his competitors' cars, being more about his adventures 
in racing.
  Ed in NC