Thunderbolt production was ended due to NHRA rule changes for Super Stock competition, requiring 500 vehicles be built to be entered in that class. Ford had been losing $1500 to $2000 on each Thunderbolt sold at the sticker price of $3900. The first 11 Thunderbolts were painted maroon (known as Vintage Burgundy in Ford literature), the rest white; 99 had manual transmissions. Many are still raced. About 50 similar Mercury Cyclones were also produced by Ford in 1964, destined to be modified to represent Ford in A/FX competition, which they dominated, as well. These vehicles varied greatly in wheel track due to customer options for varying suspension and wheel/tire combinations. Front tracks from 54 to 56 in and rear tracks from 53.5 to 55.5 in were common.