Though the cls63 has the same chassis as the e63... I feel like it's better balanced

my experience was driving a 2014 cls550 at length while my 2014 e550 was in the shop

 

I had the E63 before getting the CLS. Always felt, and Still feel, that the E63 is the better overall car. Much more nimble and snug than the long bodied boat of a CLS looool

Got the CLS cuz it's better looking. E Still feels faster judging by the good old butt dyno. Track Numbers say otherwise lol😏😏

Iron Sheik

 

Every gallon of gas is 7lbs so that’s about 50lb difference

 

He had about 40 L more than I did, so roughly around 100 lbs assuming density of E30 is 1.

Iron Sheik

 

Found this bit of data:

E85 weights 6.59 lbs/gallon, which is 0.44 lbs/gallon more than gasoline.

Source: http://web.mit.edu/mamd/www/tech_str...85-Paper-1.pdf