It appears from the MBUSA website, you can now order a cls550 4matic. An ED delivery of mid December is available. The one I am looking at has a US MSRP of $81,805 with an ED savings of about $6k, of course I will spend at least half of that on the vacation.
Is this better than the Jeep? For me, yes all things considered.
Can it tow? No, Can you put your dog in the back? Not really. Will it be faster around a track. I bet it will. Will it's cost of ownership be lower than the Jeep? Only time will tell, but I believe it will be over a 3-4yr period.
Look how the RWD version compares to the 300 SRT8 (in the charts)
Does anyone want to buy a pristine 2009 Modern Blue SRT8 in January for $20k less than the 2012 Jeep SRT8?