Volvo has given its C70 coupe convertible a facelift for 2010.Just in time for the start of the convertible season, Drive it! takes the basic, 136 hp diesel model with dual clutch Powershift transmission out for a spin. How well does the C70 fare during a test drive in the city? The vehicle has been given a more elegant look in the front and the back. We take the car out on a weekend shopping trip to find out whether it's practical as well as beautiful.