Performance
With that kind of horsepower, the Mercedes-Benz CL-Class is a genuine speedster.
Handling
With their similar turning radiuses, the BMW and the Mercedes-Benz CL-Class most definitely handle almost the same into and out of tight spots.
Drivetrain
The 328's engine is tremendously smaller than the Mercedes-Benz's. Note that smaller engines can be stressed more; however, smaller engines are often cheaper to fix.
The Mercedes-Benz CL-Class packs quite a wallop compared to the BMW 328 as far as torque, which is roughly equivalent to acceleration.
Torque equals pickup, and the Mercedes-Benz will have picked up and gone by the time the BMW 328 finally gets moving.
Utility
Neither the CL-Class nor the BMW 328 has a marked advantage regarding seating capacity.
Convenience
You'll most definitely take the Mercedes-Benz for a fill-up roughly as often as the BMW 328.
Comfort
Taller drivers will significantly enjoy the extra head room in the BMW 328's front cabin compared to the CL-Class.
The ampler interior dimensions of the BMW make it significantly roomier for your passengers than the Mercedes-Benz CL-Class.
Dimensions
The Mercedes-Benz CL-Class is substantially heavier than the 328.
Your wallet will hurt more every time you fill up the Mercedes-Benz CL-Class than the BMW because of its larger tank.
The 328 and the Mercedes-Benz CL-Class compete for the same parking spaces.
The Mercedes-Benz CL-Class's longer wheelbase will result in a smoother, more stable ride; however, the 328 may give a nimbler feel in daily traffic.
Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. It costs almost the same to get the 328 to the dealership as the Mercedes-Benz.
The Mercedes-Benz CL-Class consumes a lot of gasoline compared to the BMW 328.
The BMW 328 will save you money at the pump compared to the Mercedes-Benz CL-Class.
The Mercedes-Benz is tremendously costlier than the BMW 328 with respect to MSRP.
The Mercedes-Benz CL-Class will cost you a lots_of_money in gasoline every year compared to the BMW 328.
The BMW will save you a bundle at the pump every year compared to the Mercedes-Benz.
Overview
The BMW 328 and the Mercedes-Benz CL-Class have the same basic after-sale protection.