The FD4000 ready-mix truck includes concept front and rear tandem drive axles featuring disc brakes versus standard drum brakes. Inside the drum, rear barrel paddles minimize clumping and self-cleaning fins reduce weight and build-up. A 360-degree video camera records around the truck and inside the cab to improve driver visibility and document deliveries. The dashboard has LED dome lights, rear vents and louvers, and manual in-cab water-add control valve for simplicity and reliability. Terex Corp.