The 451's first summer in Operation and Maintenance: 451 Model, 2008-2015, gasoline Posted May 25, 2012 · Report post UPDATE I'm tipping the odometer at 53,000 miles and here are my observations:Problems:1) Updated: Poor Dealer Service. <- MB closed that and many other non MB Dealerships. Current closer MB Dealership does a good job of maintenance but you need to keep an eye on the Dealership trying to over-maintenance your vehicle.2) Left drivers mirror still slightly vibrates after dealership replaced it. The right side mirror which is rock solid.3) Wiper adjusted by old dealership because wiper hit tridion cell on high speed but only when in conjunction with high head winds.Positives:1) Gas mileage: I'm getting a constant 325-425 miles per tank and I'm ok with that. all the time. No longer update spiritmonitor.2) The smart has exceeded most of my expectations and am STILL very pleased with it's overall performance.3) No other minor or major problems... at the moment.Comments:1) I do not get ALL the recommended services done per the smart owners manual as I see no benefit from over-maintenance my vehicle.2) Oil changes ever 10,000 miles w/ MB 0-40 synthetic & MB filter.3) I WILL do the recommended maintenance but at double the interval such as changing the coolant, brake fluid and spark plugs.Overall:I'd say that my 2008 smart has exceeded my expectations and although you can get lemons with any type of car, if you do get one, just make some lemonaide.