Mattel Hot Wheels 2015 No. 2/7 Batman Vs Superman The Rockster Die-Cast Replica Model Vehicle - Brand New Factory Sealed Shop Stock Room Find. Released by Mattel in 2015 as part of their Batman Vs Superman Series of Die-Cast Replica's. This fantastic Rockster is a replica of the version as seen in the smash hit movie but measures only 2 1/2 inches long and is number 2 of 7 models in the series. Brand New Shop Stock Room Find. Discovered in the store room of a closing down shop with a whole host of other die-casts from a similar era. The item is in mint condition and comes sealed on the original card. The card is also in near mint condition, with no visual signs of any shelf wear. All Orders Received Before 4.00pm Mondays to Fridays are shipped the same day.