From the order guide:copperplate said:
http://www.f-typeclub.com/forums/Thread-2014-US-Jaguar-F-Type-order-guide-official
F-Type:
245/45 R18 front
275/40 R18 rear
18-inch Vela-style alloy wheels
F-Type S:
245/40 R19 front
275/35 R19 rear
19-inch Propeller-style alloy wheels
F-Type V8 S:
255/35 R20 front
295/30 R20 rear
20-inch Cyclone-style alloy wheels