Spy photographers have been busy capturing images of the latest models undergoing testing. To date, it's only been a week since the start of August 2013 and already spy photographers have spotted three automaker's offerings. Spies captured images of Mercedes-Benz next Class, Lexus GS first "F" derivative and Toyota's fourth generation Prius. Check out our latest spy images: SPIED: Porsche Macan Spy photographers captured images of Porsche’s undisguised new baby SUV. Check out our gallery of the new Macan! FIRST LOOK: Lexus GS FSpy camera captured Lexus’ next performance sedan being tested in Germany. The prototype is believed to be the first "F" derivative in the automaker’s GS rangeSPIED: Next C-ClassSpy photographers captured images of the next-generation Mercedes-Benz C-Class. We have exterior and interior images!SPIED: 2013 Toyota PriusDespite looking like a canvas-skinned aardvark, the car spy photographers captured during testing is Toyota’s next-generation Prius.SPIED: 2014 Suzuki AltoBigger dimensions, updated styling, more kit, Suzuki is testing a new version of its entry-level hatchback. Our spy photos captured the new Alto in action.