The #107 issue explains why most model racing cars are fitted with downforce magnets to make them quicker through the corners, with full Race Track Tests of seven of these "magnet-stuck" cars. You can learn how to install a digital decoder so you can race both Scalextric and Carrera Formula 1 cars on any track. Jim Hansen's 10 x 20-foot Circuit de Montana wood tabletop race track is featured. There are full reports on the prototypes’ racing background and the performance of the 1/32 scale models of the 1967 Ferrari 330 P4, 1974 McLaren M23 Formula 1, 1974 Porsche Carrera RSR, 1975 BMW 3.0 CSL, 2018 Ginetta G60-LT-P1 Le Mans and 2018 Toyota BRZ (GT86). The track plans list all the sections needed so you can assemble a 2-lane version of the 2-lane Stonesilver Grand Prix Circuit for Scalextric Sport, Classic, SCX, Policar, Ninco, Carrera on an 8 1/2 x 9-foot or a 16 1/2 x 18-foot tabletop with plastic track. There is also a plan for an HO scale 4-Lane Stonesilver Grand Prix Circuit on an 8 x 12-foot tabletop.