GM Envolve RV Option Package offers a variety of features to help create a comfortable RV. Standard features include a proven 6.6L V8 engine, 4-wheel anti-lock disc brakes, an external transmission oil cooler, as well as a StabiliTrak® electronic stability control and traction control systems. Available features include a 215 litre capacity fuel tank (approx.) and an isolated second battery with rundown protection. Plus, each vehicle comes with a Driver Information Centre, that can display fuel range, average speed, oil life, fuel used, ice warning, engine hours, average fuel economy, tachometer and maintenance reminders.