 For the 2017 race season, Callaway and its drivers captured the ADAC GT Masters Teams Championship, Drivers Championship, Junior Championship and second place in the Trophy Championship.The Callaway C16 is a bespoke automobile based on the C6 Corvette.The C16 is marketed as an alternative to the Porsche 911 GT3, the Lamborghini Murciélago, the Ferrari F430 or the 599 GTB and is offered in three different body styles, Cabrio, Coupé and Speedster.