WalthersProto #101352 - 89 Thrall Bi-Level Auto Carrier - Ready To Run HO Scale - Canadian National / GTW Rack / TTGX Flatcar #702251 - One time run of these road numbers, order now - limited quantity available Prototypes introduced in 1970s and still going strong today Used to haul light trucks and similar vehicles Factory-installed grab irons, ladders and brake equipment Perfect car for Cornerstone(R) Auto Series kits, each sold separately Ultra-smooth rolling 33" RP-25 turned metal wheelsets Proto MAX(TM) metal knuckle couplers PLEASE NOTE: As WalthersProto Auto Racks are the correct prototype length, a minimum 24" radius is recommended for operation.