Speed racer achievement
From Geo Hashing
The Speed Racer Achievement is available only when the geohash falls on a drivable road. The achievement can be claimed when you drive through the geohash at the maximum (legal) speed on the correct day. Satisfactory proof will probably consist of a photo of yourself near the location, preferably with your vehicle. Note that taking pictures while driving is dangerous and not recommended, so it helps to bring a friend.
[edit] Ribbons
Add a ribbon to your user or geohash visit page to show what you have achieved! Use this ribbon template to claim a ribbon like the one below.
This user earned the Speed racer achievement

[edit] Winners
The following Geohashers claim to have won this award and to have supplied proof.
 Stretch, with proof here.
 Loch, with proof here with about a dozen others including Geekthras.
 sparkyb, for the 06/07/2008 Boston meetup. proof of location and time and proof of coordinates and speed.
 Middlerun, with blurry proof here.
 Zubenelgenubi, on a bicycle, though evidence is sketchy.
 Thomcat twice, with proof here and here.
 Bishop Wash, with proof here.
 NCBears, with proof here and here.
 Woodveil, with proof here
 David Souther, with proof here.
 Nathan, with proof here.
 Crazycaveman proving himself worthy
 Ekorren passing through 20090607 48 9 on a local train, with proof on the expedition page; and through 20090802 48 9 by bike, with proof by GPS.
 Reinhard passing through 20090630 50 11 on a German motorway at 130 km/h.
 Bcasavan with proof here.
 GarafaJon, with proof here.
 Macronencer and sermoa at 20090929 51 1, with proof here.
 davidc, separately but also at 20090929 51 1 with video proof here.
 Art with proof here.
 Llavids with proof here.
 Pne with proof here.
 Mathmusic with proof here
 Kbh3rd, with proof here.
 1PE with proof here
 MellyCopter with proof here
 Benglish with proof here
 RocketMac with proof here
 Steingesicht with proof here
 EleanorAbernathy and LeslieHapablap with proof here
Without proof:
 Jacob, here but no proof, and also not at 4 PM. :)
 Bill, also here and also no proof, but at 4PM. ;)
 Geekthras, here, with about a dozen others.
 Matt, at the same hash but separate from the group.
 Alex and Chris, here, but mention must be made that the street had no posted speed limit signs on the way to or from the hash.
 Yvh11a ran over a qtip while achieving this award
 Jevanyn was on his way to a birthday party, so he couldn't stop for the geohash on 20081206.
 Anthony wasn't driving as fast as the speed limit here, because it's awfully hard to get up to 50mph that close to the corner.
 Dtobias doesn't suppose the blurry and poorlylit pictures here are sufficient proof. For another instance, how about this?
 DJHobby, Erik, and Kira all failed to get proof, but you can trust us!
 Sara and her husband did it here but didn't get good pictures.
 Anthony passed through 20101103 37 122, and posted the KML file, but didn't get a picture.
 Rincewind thinks the tracklogs are just a waste of time and proof is overrated, because nobody but yourself is interested in your achievements anyway, so you'd be mainly cheating yourself. He raced through 20110212 50 8 because it was too easy not to.
 Dtobias was by himself at 20130815 26 80 and didn't do anything so reckless as try to take pictures while driving.