 You'll receive 80% of what you've paid for.Does not go over 25 mph from stop to gas engine engage.Use the heater and lights and mpg goes to around 27 at 60 mph with cruise.Summer with air conditioning gets 35 mpg in town if you're lucky.Colder, higher country (Idaho, Montana, etc) doesn't carry CMax on their lots.Lots of gleeming claims on various sites, maybe a lot of marketing sending spam?I've spoken with other actual owners and they report the same problems.I have over 4,000 miles & been in twice for "updates" on system, maybe now my clock will keep better time and my smart phone will sync up every time - but I'm not holding my breath.