I found this site witch has some more tire info
http://www.powerdog.com/tiresize.cgi
Stock Front Tire
Specification 205/55-16
Sidewall 4.4"
Radius 12.4"
Diameter 24.9"
Circumference 78.2"
Revolutions 811/mi
Speedometer 60MPH
Odometer 10000mi
Difference N/A
Stock Rear Tire
Specification 225/50-16
Sidewall 4.4"
Radius 12.4"
Diameter 24.9"
Circumference 78.1"
Revolutions 811/mi
Speedometer 60MPH
Odometer 10008mi
Difference -0.1%