At a repair garage, probably around $350, parts and labor for one side.
Good news, since the Solara is a front wheel drive car there is no "drive shaft" so engine replacement wouldn't be necessary. <smart alek mode off> Even if a bearing on one of the halfshafts going from the transmission to the front wheels is bad only the bearing would need to be replaced. If it's on the transmission side it 'might' involve removal of the transmission. I'd suggest you purchase a Clymer manual for your car for more information. They're available at many auto supply stores or at Amazon.com. You can also download the factory service manual from Toyota for about $10. Cheers
The front track of the 2008 Smart Fortwo is 4 ft. 2.5 in. (50.5 in.).
The front track of the 2012 Smart Fortwo is 4 ft. 2.5 in. (50.5 in.).
The front track of the 2013 Smart Fortwo is 4 ft. 2.5 in. (50.5 in.).
The front track of the 2011 Smart Fortwo is 4 ft. 2.5 in. (50.5 in.).
The front track of the 2010 Smart Fortwo is 4 ft. 2.5 in. (50.5 in.).
The front track of the 2009 Smart Fortwo is 4 ft. 2.5 in. (50.5 in.).
The front track of the 2014 Smart Fortwo is 4 ft. 2.5 in. (50.5 in.).
The drive will need to be replaced.
take off the wheel bearing and put a new one on smart one
Smart card is generally referred to a card bearing an integrated circuit (IC). Typically, the IC has an operating system of its own and runs an application on it for storing the user data. A terminal with smart card reader is generally used for reading & writing the IC.
Yes, apple say that they will bring out a new smart cover which covers the back as well as the front.