Finished building my Tata T1 Prima racing truck with all the instructions ( 42041 redesign). My original prototype had minor errors in it but now it has been perfected and PDF instructions available :
LEGO 42041 Race Truck Instructions, Technic
Amazon.com: LEGO Technic 42041 Racing-Truck 2 In 1, Red and Black : Toys & Games
LEGO TECHNIC: Race Truck (42041) for sale online | eBay