Yes, smart cars are towable between the years 2008 and 2015. The earlier diesels were as well but there were no tow brackets for them. Follow the instructions and install a battery disconnect which disables the computer so it doesn't know the wheels are turning.
Thing to note though. ALL and I mean ALL smart cars are standards. They all however shift automatically. Make sure you understand the difference. There is no such a thing as an automatic smart car. The transmission stick on the American versions have been modified by Mercedes to make them more American friendly so they have the classic Park Reverse Neutral and so on. However they are all standard transmissions. There is no clutch pedal. When you step on the gas the computer releases the clutch. When you are going fast enough the computer engages the clutch and shifts the transmission and then carries on. It is a 5 speed. The "park position" actually just selects reverse like you would in a normal standard transmission. IN the North American market the smart transmission is criticized as the jerkiest automatic transmission on the market when in actual fact it is the smoothest standard transmission on the road. All the advantages of a standard and none of the disadvantages. These transmissions have been very reliable in the almost 1.5 million smart cars on the road in the world. They are not very popular in North America but rule over seas.
We have three smart cars, all convertibles, 1 electric and two diesels. The most reliable car we have ever had and probably the funnest. The electric is also the quickest car off the line I have had and I had a 400 TA TransAm.
We hall ours on a trailer for personal reasons but many we know in the smart car community haul four down with no problem.
On edit. All the electrics must be towed on a trailer.


