Possible Clues:

• Judas Priest album - almost a fish
• Jet or but
• This engine made cars charge
• Type of supercharger using engines exhaust gases
• Engine charger
• Getting around in orbit or but
• Sports-car booster
• 2013 movie about a racing snail voiced by the one and only Ryan Reynolds
• 2013 animated snail film
• Part of engine died: track going uphill