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2018 Mercedes-Benz S-Class vs 2018 Cadillac CT6 Sedan

It can be difficult to navigate the luxury automobile segment with so many options to choose from. To help narrow things down, Mercedes-Benz of Arrowhead created a simple 2018 Mercedes-Benz S-Class vs 2018 Cadillac CT6 Sedan comparison. 

The most notable difference between the two models is the starting price--the Cadillac CT6's top trim level costs just a few thousand dollars less than the S-Class Sedan's base trim level. This stark price difference indicates that, even as a base model, the S-Class has much more to offer for every passenger. Both models offer two engine options, but both S-Class engines outperform the CT6's engine options. The sedans keep their power in check with impressive fuel economy ratings and top out at 155 MPH. 

2018 S-Class vs 2018 Cadillac CT6 Sedan

2018 Mercedes-Benz

S-Class 450


2018 Cadillac

CT6 Platinum

$89,900* Base Price $84,295

362-hp 3.0L V6 /

463-hp 4.0L V8

Engine Options &

Horsepower Output

335-hp 3.6L V6 /

404-hp 3.0L V6

155 MPH Top Speed 155 MPH
Up to 19 city / 28 highway Fuel Efficiency (MPG) Up to 18 city / 27 highway


2018 S-Class Sedan Standard Features

Across all four model options, the 2018 Mercedes-Benz S-Class Sedan is packed with premium features and upscale amenities to enhance life behind the wheel. The base model, S 450, is well-equipped to deliver a first-class driving experience like no other and will leave owners wondering what more they could possibly want. Wanting more, however, is always an option with Mercedes-Benz, so the other trim levels add even more standard features to enjoy. See what features are offered as standard equipment on the base S 450 model below.

Key standard features include the following:

  • 16-way Power Front Seats with Heat and Memory Functions
  • Five Years of Mercedes-Benz mbrace® Connect
  • 64-color/3-zone LED Ambient Lighting
  • Car-to-X Communication
  • ENERGIZING® Comfort Control System
  • ...and so much more! 

*MSRP does not include transportation charge. Excludes options, taxes, title, and registration. Options, model availability, and price may vary. See Mercedes-Benz of Arrowhead for details.

2018 Mercedes-Benz S-Class cabin
2018 Mercedes-Benz S-Class front seats
2018 Mercedes-Benz S-Class rear seats with pillows
2018 Mercedes-Benz S-Class driving on road