Swift Challenger 570 SR 2011/2

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Briang
Briang Club Member Posts: 689
500 Comments 100 Likes
edited May 2015 in Caravans #1

Does anyone know what the letters SR mean in the Challenger 570 SR compaired with the Challenger 570. I have looked on the internet but cannot find the information, all help would be appreciated.

Brian.

 

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