German tuner Prior Design has decided to enhance the facelift version Mercedes SL R320 in terms of appearance by developing a widebody kit inspired by the SL65 AMG Black Series.
So among visual enhancements included in the Mercedes SL widebody kit by Prior Design we find the new front bumper, rear spoiler with integrated diffuser, side sills and the wider wheel arches.
The massive 20 inch light alloy wheels that are painted black help the Mercedes SL widebody by Prior Design cover ground and for an even more aggressive look the German coupe-cabriolet can also be fitted with an optional Airmatic suspension that lowers the car’s height.     
Pricing for the Mercedes SL widebody kit by Prior Design was not announced, and we don’t know yet if any performance upgrades were applied.  

Source: Prior Design