When talking roomy interior and cargo convenience, Dodge Ram Quad Cab® trucks speak volumes — 143.3 cubic feet of total cab volume, in fact, the rear seats folds up to expose a fold-flat steel load floor for handsaws, work boots, etc., and helps keep muddy items from soiling the carpeting. Underneath this load floor, you'll find bins for additional storage. Available on Quad Cab models only. Standard on Laramie, optional on ST and SLT.)

Easily keep tabs on the vital stats of your Dodge Ram Chassis Cab with the electronic vehicle information center (EVIC), standard on Dodge Ram Chassis Cab trucks equipped with the 6.7-liter Cummins® Turbo Diesel engine. The EVIC displays messages such as required maintenance, outside temperature, trip computer, and digital compass.

Keep your eyes on the road and your hands on the wheel with the available voice-activated UConnect® Hands-Free Communication System with auto-dimming rearview mirror. UConnect® lets you dial your Bluetooth®-compatible wireless phone with simple voice commands. It also automatically mutes your radio before receiving or sending a call.

Here's a simple, handy convenience we can all appreciate — a keyless entry key fob that locks and unlocks the drivers-side door with one touch of a button; two touches and all doors lock or unlock. No more fumbling for the right key, just point and click. Furthermore, a one-touch driver's power window button opens and closes the window.

If time is money, time lost traveling to a jobsite is money too. Avoid wasting time stuck in traffic or lost en route with the available (Mopar accessory) Navus™ Navigation System. This premium global positioning system (GPS) system provides helpful navigation capabilities such as map access, an easy-to-use touch-screen interface, high-resolution color display, automatic route calculation, and turn-by-turn directions.

An exhaust brake switch is included with the exhaust brake on 2008 Dodge Ram Chassis Cab trucks equipped with the 6.7-Liter Cummins® Turbo Diesel engine. The switch is located in the center stack, below the heating, ventilation and air conditioning (HVAC) controls. The exhaust brake provides better vehicle driving control, reduced brake fade, longer brake life, and faster cab warm-up. Standard on 4500 and 5500, available on 3500.