Possible Clues:

• Gathering of academics behind restricting speed in Mars lander?
• RAF accepts new vehicle going well beyond its normal range
• PC with fast car that's modified with head of engineering -- it goes like a rocket
• Astronauts' vehicle
• RAF accepts high flier
• Ridiculous situation reversed in second convention for high-level transport
• Mariner 4 or Voyager 2
• Goes over the moon and has room for art
• Rate expertise used on second capsule
• Challenger perhaps accepts fair blows if one's knocked out