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Cadillac CT5 vs Mercedes-Benz C43 AMG

Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.

Vehicles

Cadillac logo

2026 Cadillac CT5

Mercedes-Benz logo

2026 Mercedes-Benz C43 AMG

Overview

SpecCadillac CT5Premium LuxuryMercedes-Benz C43 AMGAMG C 43
Selected trimPremium LuxuryAMG C 43
Body styleSedanSedan
Drivetrainrear wheel driveall wheel drive
Fuel typepremium unleaded (recommended)premium unleaded (required)
Transmission10-speed shiftable automatic9-speed shiftable automatic
Engine typegasmild hybrid
Model year20262026

Pricing & market

SpecCadillac CT5Premium LuxuryMercedes-Benz C43 AMGAMG C 43
MSRP$48,600 (best)$64,150
Lowest listing price$26,597 (best)
Median listing price$41,702 (best)
Highest listing price$60,837 (best)
For sale now14 (best)0

Fuel economy & range

SpecCadillac CT5Premium LuxuryMercedes-Benz C43 AMGAMG C 43
Combined MPG26 MPG (best)22 MPG
City MPG23 MPG (best)19 MPG
Highway MPG32 MPG (best)27 MPG
Fuel tank17 gal17.4 gal (best)

Performance

SpecCadillac CT5Premium LuxuryMercedes-Benz C43 AMGAMG C 43
Horsepower237 hp416 hp (best)
Torque258 lb-ft369 lb-ft (best)
Engine size2 L2 L
CylindersI4I4

Size & capability

SpecCadillac CT5Premium LuxuryMercedes-Benz C43 AMGAMG C 43
Seating5 seats5 seats
Doors44
Cargo volume11.9 cu ft (best)11.6 cu ft
Curb weight3,663 lbs (best)4,165 lbs
Wheelbase116 in (best)112.8 in
Length193.8 in (best)188.6 in
Width74.1 in74.4 in (best)
Height57.2 in (best)57.1 in

Safety & recalls

SpecCadillac CT5Premium LuxuryMercedes-Benz C43 AMGAMG C 43
NHTSA overall5 / 5 ★ (best)
Frontal crash (driver)5 / 5 ★ (best)
Frontal crash (passenger)5 / 5 ★ (best)
Side crash (driver)5 / 5 ★ (best)
Side crash (passenger)5 / 5 ★ (best)
Side pole5 / 5 ★ (best)
Rollover5 / 5 ★ (best)
Open recalls (YMM scope)1None reported (best)

Highlighted values indicate the better figure for that spec when a clear winner exists. Specs reflect the selected trim for each vehicle. Drag a vehicle header to reorder columns. MSRP and specifications are manufacturer data; listing prices and inventory come from live dealer listings. Safety ratings are from NHTSA.

Trim overview

All available trims with MSRP. The trim selected above is highlighted; comparison specs use that selection.

TrimCadillac CT5Mercedes-Benz C43 AMG
1

Premium Luxury

$48,600 MSRP(Currently comparing)

AMG C 43

$64,150 MSRP(Currently comparing)

2

Sport

$49,600 MSRP

3

V

$57,600 MSRP

4

V Blackwing

$97,600 MSRP

Live inventory

Cadillac CT5 vs Mercedes-Benz C43 AMG FAQ

Which is better: 2026 Cadillac CT5 or 2026 Mercedes-Benz C43 AMG?
It depends on priorities. OpenDealer compares 2026 Cadillac CT5 vs 2026 Mercedes-Benz C43 AMG on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
Which costs less: 2026 Cadillac CT5 or 2026 Mercedes-Benz C43 AMG?
Based on starting MSRP, the 2026 Cadillac CT5 starts lower at $48,600. Live Cadillac CT5 listings start at $26,597.
Which has better startingMsrp: 2026 Cadillac CT5 or 2026 Mercedes-Benz C43 AMG?
The 2026 Cadillac CT5 leads on startingMsrp in this comparison (48,600).
Which has better combinedMpg: 2026 Cadillac CT5 or 2026 Mercedes-Benz C43 AMG?
The 2026 Cadillac CT5 leads on combinedMpg in this comparison (26).
Which has better horsepower: 2026 Cadillac CT5 or 2026 Mercedes-Benz C43 AMG?
The 2026 Cadillac CT5 leads on horsepower in this comparison (668).
How do the NHTSA safety ratings compare for 2026 Cadillac CT5 vs 2026 Mercedes-Benz C43 AMG?
NHTSA overall crash-test ratings in this comparison: Cadillac CT5 (5/5 NHTSA overall).