 Complete the following phrase:  The FW13 was designed by Argentine Enrique Scalabroni and featured a distinctive oval-shaped air intake, as well as the Renault RS1 3.5-litre V10 engine, Renaults first non-turbo Formula One engine which was rated at approximately . The car was driven by Belgian Thierry Boutsen and Italian Riccardo Patrese. It made its racing début late in the 1989 season - at the 