For those of you who’ve been living under a rock for the last eight years, LUGNuts is the Flickr group for LEGO car enthusiasts, founded by Lino Martins and Nathan Proudlove, with Tim Inman, the impossibly prolific Peter Blackert and yours truly serving as moderators. Ever since it was founded, the group has organised a monthly build challenge centred on a particular type of car or car-related sub culture. Normally these challenges are just for the fun of it and they’ve inspired many cars blogged here on TBB. This month is extra special, however, because it’s the 100th challenge!

To mark this occasion we’ve turned the challenge into a competition, with whoppers of prizes. The third place winner gets the Technic 42050 Drag Racer, second place gets the Technic 42039 24 Hours LeMans Race Car and for the first place winner, we pull out all the stops with the Technic 42030 Remote-Controlled Volvo L350F Wheel Loader. These prizes are sponsored by The Brothers Brick, one of the biggest Bricklink stores in the US, Constructibles, and the LUGNuts Admins and moderators. Furthermore, the three winners will also receive autographed editions of The Art of LEGO Scale Modeling, courtesy of Dennis Glaasker, Dennis Bosman, and No Starch Press. Thanks to Dennis Glaasker and his equally creative daughter Stacey for making the poster.

To compete, join the discussion, pick a number, get assigned one of the individual challenges from our top-secret list of wacky cool cars and start building.