From the safety guide:
19 inch
Front 8.0J x 19
Rear 8.0J x 19
21 inch - silver
21 inch - grey
Front 8.5J x 21
Rear 8.5J x 21
Road wheel nut torque 175 Nm (129 lbf.ft)
Tire specifications
On 19 inch wheels:
Goodyear Eagle RS-A2
All P245/45R19 98V
On 21 inch wheels:
Continental Extreme Contact DWS
All P245/35R21 96Y