Spacecraft
Helios 2 Solar Probe: The Helios 2 Solar Probe, a NASA and German Aerospace Center (DLR) mission, holds the record for the fastest speed relative to the Sun. It reached a heliocentric speed of about 157,078 miles per hour (252,792 kilometers per hour) on April 17, 1976.
Land-Based Vehicles
ThrustSSC: The ThrustSSC, a jet-powered car, became the first land-based vehicle to officially break the sound
