Take your pick.
***Note***
Due to my limited knowledge with FTP, this site is unable to provide direct-uploading services like other download sites. Therefore, the only way to post your addons here is by either posting it directly in the forum [see link below]. Please follow the instructions provided in the link.
http://z11.invisionfree.com/FSGV_Forum/index.php?showtopic=36
Dodge Viper GTS
Modeled by Dirk Stuck with dynamics updated by Bruce Fitzgerald
http://www.flightsimgroundvehicles.com/articledodgeviper.htm
Challenger 2 Armored Tank
Model by MDivey and Paul Gausden with dynamics by Bruce Fitzgerald
http://www.flightsimgroundvehicles.com/challenger2review.htm
Halo Series Warthog
Modeled by Bruce Fitzgerald
http://www.flightsimgroundvehicles.com/halowarthogreview.htm
Pushback Service Vehicles Package
Modeled by Dirk Stuck
http://www.flightsimgroundvehicles.com/ftbpushbackreview.htm
Hockenheimring Formula 1 Race Track
Modeled by Dirk Stuck
http://www.flightsimgroundvehicles.com/hockenheinringreview.htm
Hockenheimring Online Race Results - Race #2
by Jessy Corrales
http://www.flightsimgroundvehicles.com/onlineracereview2.htm
Hockenheimring Online Race Results - Race #1
by Jessy Corrales
http://www.flightsimgroundvehicles.com/onlineracereview1.htm
Developers In the Spotlight
by Jessy Corrales