(I dont know anything about such things). The remaining 3 cars wind and go to varying degrees. I suspect they could use some lubrication. The track includes 16 pieces, some are missing pins but they are not required for adherence.
Curved (12) Straight (2) Bridge (2). Included is a wind up key. Also are 2 rubber pads, not sure if these are part of original kit or if they are particularly useful.
The item "VINTAGE MARX TIN RACE TRACK & WIND UP CARS #1 ACE, #2 ARROW, #4 RACER, #6 WHIZ" is in sale since Wednesday, December 18, 2019. This item is in the category "Toys & Hobbies\Vintage & Antique Toys\Wind-up Toys". The seller is "robinsand1" and is located in Pottstown, Pennsylvania.This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica, Iceland, Luxembourg, Macao, Paraguay, Reunion, Uruguay.