Daimler today has unveiled the F-CELL Roadster, the latest in their line of "F-Series" concept vehicles (past Mercedes research models can be seen here), and as you'll see, it draws its inspiration from a diverse variety of automotive eras. From a functional standpoint, it's a roadster fitted with a 1.2 kW hybrid drive – one that allows the F-CELL to reach a top speed of 15 mph and achieve an operating range of 217 miles. From a design standpoint, however, is where the F-CELL Roadster truly shines, as it manages to blend the overall aura of the original Benz patent motor car with seating and a fiberglass front section both drawn from elements of Formula One racing.