Thought the following results from a 1968 Modern Motor magazine might be of humorous interest;
0-20 mph 5.1 sec
0-30 mph 9.1 sec
0-40 mph 13.8 sec
0-50 mph 27.8 sec
Standing quarter mile 25.1 sec.
Stated top speed was 55.9 mph. It was not stated if this was downhill and wind assisted.
Countrybuggybill

lol... I know they go real good with twin-carb 1916s in them!

Bill,
Those are astounding performance figures!!!!
Let's see now.....where's my Bell helmet and Nomex drivers suit?