 Complete the following phrase:  In January 1964 Sydney Allard launched the Dragstar Dragon, a low-cost dragster designed by John Hume, powered by a Shorrock-supercharged 1,500 c.c. Ford engine, costing under 500 in kit form. Several cars of this type were produced. Among the drivers were his son Alan Allard, Gerry Belton and Denis Jenkinson. Alan Allard and Belton demonstrated their dragsters at the 