Cadillac CT5 vs Mercedes-Benz C-Class

Key differences

  • Mercedes-Benz C-Class is 173 mm (6.8 in) shorter than Cadillac CT5.
  • Mercedes-Benz C-Class makes 14 kW (18 hp) more power than Cadillac CT5.
  • Cadillac CT5 costs US$450 less than Mercedes-Benz C-Class (list prices, excl. tax).
Gas

Cadillac CT5

Sedan · 2026 · ICE

US$49,200 excl. tax

CA$58,599 excl. tax

No price listed for United Kingdom yet.

No price listed for Australia yet.

No price listed for Germany yet.

No price listed for Netherlands yet.

No price listed for Norway yet.

No price listed for France yet.

No price listed for Spain yet.

No price listed for Italy yet.

No price listed for Belgium yet.

No price listed for Austria yet.

No price listed for Ireland yet.

No price listed for Sweden yet.

No price listed for Denmark yet.

No price listed for Switzerland yet.

Full specifications of Cadillac CT5
Gas

Mercedes-Benz C-Class

Sedan · 2026 · ICE

US$49,650 excl. tax

€74,845 incl. tax

CHF 68,900 incl. tax

No price listed for Canada yet.

No price listed for United Kingdom yet.

No price listed for Australia yet.

No price listed for Germany yet.

No price listed for Netherlands yet.

No price listed for Norway yet.

No price listed for France yet.

No price listed for Spain yet.

No price listed for Italy yet.

No price listed for Belgium yet.

No price listed for Austria yet.

No price listed for Sweden yet.

No price listed for Denmark yet.

Full specifications of Mercedes-Benz C-Class

Size comparison

Side view size comparison of Cadillac CT5 and Mercedes-Benz C-Class
  • Mercedes-Benz C-Class is 173 mm (6.8 in) shorter than Cadillac CT5.
  • Mercedes-Benz C-Class is 15 mm (0.6 in) lower than Cadillac CT5.
  • Mercedes-Benz C-Class has a wheelbase 81 mm (3.2 in) shorter than Cadillac CT5.
Blue solid line: Cadillac CT5; orange dashed line: Mercedes-Benz C-Class. The outlines are generic body shapes drawn at one scale, not the real design of any model.

Cadillac CT5 is 4,923 mm (193.8 in) long and 1,453 mm (57.2 in) high, with a wheelbase of 2,946 mm (116 in). Mercedes-Benz C-Class is 4,750 mm (187 in) long and 1,438 mm (56.6 in) high, with a wheelbase of 2,865 mm (112.8 in).

Front view size comparison of Cadillac CT5 and Mercedes-Benz C-Class
  • Mercedes-Benz C-Class is 8 mm (0.3 in) wider than Cadillac CT5.
Blue solid line: Cadillac CT5; orange dashed line: Mercedes-Benz C-Class.

Cadillac CT5 is 1,882 mm (74.1 in) wide and 1,453 mm (57.2 in) high. Mercedes-Benz C-Class is 1,890 mm (74.4 in) wide and 1,438 mm (56.6 in) high.

Rear view size comparison of Cadillac CT5 and Mercedes-Benz C-Class
Blue solid line: Cadillac CT5; orange dashed line: Mercedes-Benz C-Class.

Cadillac CT5 is 1,882 mm (74.1 in) wide and 1,453 mm (57.2 in) high. Mercedes-Benz C-Class is 1,890 mm (74.4 in) wide and 1,438 mm (56.6 in) high.

Compare specifications

A check mark shows the better value in a row. Range and efficiency check marks compare only values from the same test cycle. Prices are each market's own list prices, compared within that market; some include tax and some do not, and no price is marked better when the tax treatment differs. Energy cost is what the energy for 100 km (100 mi where the market uses miles) costs at the market's latest published national energy price, in its own currency, with the price's source and date.

Specification comparison
Specification Cadillac CT5 Mercedes-Benz C-Class
Price
Base priceUnited States US$49,200Better value on this metricexcl. taxChecked . Source for United States, Cadillac CT5US$49,650excl. taxChecked . Source for United States, Mercedes-Benz C-Class
Base priceCanada CA$58,599excl. taxChecked . Source for Canada, Cadillac CT5 Not listed
Base priceUnited Kingdom Neither car has a price listed for United Kingdom yet.
Base priceAustralia Neither car has a price listed for Australia yet.
Base priceGermany Neither car has a price listed for Germany yet.
Base priceNetherlands Neither car has a price listed for Netherlands yet.
Base priceNorway Neither car has a price listed for Norway yet.
Base priceFrance Neither car has a price listed for France yet.
Base priceSpain Neither car has a price listed for Spain yet.
Base priceItaly Neither car has a price listed for Italy yet.
Base priceBelgium Neither car has a price listed for Belgium yet.
Base priceAustria Neither car has a price listed for Austria yet.
Base priceIreland Not listed €74,845incl. taxChecked . Source for Ireland, Mercedes-Benz C-Class
Base priceSweden Neither car has a price listed for Sweden yet.
Base priceDenmark Neither car has a price listed for Denmark yet.
Base priceSwitzerland Not listed CHF 68,900incl. taxChecked . Source for Switzerland, Mercedes-Benz C-Class
Energy cost
Energy cost per 100 miUnited States Not available US$14.75per 100 mi Gasoline at US$4.284 per US gallon, incl. tax, for 19 Oct 2026. EPA consumption. EIA Weekly Retail Gasoline and Diesel Prices for United States gasoline price
Energy cost per 100 kmCanada Not available CA$14.08per 100 km Petrol at CA$1.738 per litre, incl. tax, for 1 Aug 2026 to 31 Aug 2026. EPA consumption. Statistics Canada, table 18-10-0001-01 for Canada petrol price
Energy cost per 100 miUnited Kingdom Not available £22.85per 100 mi Petrol at £1.753 per litre, incl. tax, for 12 Oct 2026. EPA consumption. UK DESNZ weekly road fuel prices for United Kingdom petrol price
Energy cost per 100 kmAustralia Not available A$19.48per 100 km Petrol at A$2.405 per litre, incl. tax, for 5 Oct 2026 to 11 Oct 2026. EPA consumption. Australian Institute of Petroleum weekly reports for Australia petrol price
Energy cost per 100 kmGermany Not available €17.65per 100 km Petrol at €2.179 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Germany petrol price
Energy cost per 100 kmNetherlands Not available €19.36per 100 km Petrol at €2.391 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Netherlands petrol price
Energy cost per 100 kmNorway Not available NOK 157.30per 100 km Petrol at NOK 19.42 per litre, incl. tax, for 1 Aug 2026 to 31 Aug 2026. EPA consumption. Statistics Norway fuel prices (table 09654) for Norway petrol price
Energy cost per 100 kmFrance Not available €18.05per 100 km Petrol at €2.229 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for France petrol price
Energy cost per 100 kmSpain Not available €14.42per 100 km Petrol at €1.78 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Spain petrol price
Energy cost per 100 kmItaly Not available €16.33per 100 km Petrol at €2.016 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Italy petrol price
Energy cost per 100 kmBelgium Not available €16.11per 100 km Petrol at €1.989 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Belgium petrol price
Energy cost per 100 kmAustria Not available €14.72per 100 km Petrol at €1.817 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Austria petrol price
Energy cost per 100 kmIreland Not available €15.96per 100 km Petrol at €1.971 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Ireland petrol price
Energy cost per 100 kmSweden Not available SEK 144.91per 100 km Petrol at SEK 17.89 per litre, incl. tax, for 26 Oct 2026. EPA consumption. Preem AB list prices for business customers (Företagskort) for Sweden petrol price
Energy cost per 100 kmDenmark Not available DKK 145.15per 100 km Petrol at DKK 17.92 per litre, incl. tax, for 1 May 2026 to 31 May 2026. EPA consumption. Energistyrelsen Prisdatabase (monthly energy prices, Blyfri 95 and Autodiesel) for Denmark petrol price
Energy cost per 100 kmSwitzerland Not available CHF 16.36per 100 km Petrol at CHF 2.02 per litre, incl. tax, for 1 Sep 2026 to 30 Sep 2026. EPA consumption. BFS LIK Durchschnittspreise für Energie und Treibstoffe (monthly) for Switzerland petrol price
Dimensions
Length 4,923 mm (193.8 in)4,750 mm (187 in)
Width 1,882 mm (74.1 in)1,890 mm (74.4 in)
Height 1,453 mm (57.2 in)1,438 mm (56.6 in)
Wheelbase 2,946 mm (116 in)2,865 mm (112.8 in)
Curb weight Not available 1,735 kg1,735 kg (3,825 lb)
Performance
Power 177 kW (237 hp)190 kW (255 hp)Better value on this metric
Torque 350 Nm258 lb-ft (350 Nm)400 Nm295 lb-ft (400 Nm)Better value on this metric
0-60 mph Not available 6 s
Engine and fuel
Fuel use Not available 29 mpg8.1 L/100 km (EPA)34.9 mpg (EPA)
Fuel tank Not available 65.9 L
Engine size 2,000 cc2,000 cc
Practicality
Seats 55

Cadillac CT5

Specifications: Manufacturer official pages, cited per row, checked . www.cadillac.com news.cadillac.com

Source detailsRWD standard (AWD only listed as available); fuel_consumption_epa_l100km has its own provenance row (fueleconomy.gov file). https://www.cadillac.com/sedans/ct5/specs -> length_mm «HEIGHT 57.2" LENGTH 193.8" WIDTH WITH MIRRORS 80.3»; height_mm (same row); wheelbase_mm «WHEELBASE 116" GROUND CLEARANCE 4"»; seats "SEATS UP TO 5 PASSENGERS"; power_kw "HORSEPOWER 237 with premium gasoline" [2.0L turbo I4, only engine] | https://news.cadillac.com/newsroom.detail.html/Pages/news/us/en/2023/sep/0913-ct5.html -> width_mm "74.1/ 1882 (w/o mirrors)" [2025 model-year press kit, same body]. Exact factors: hp x 0.745699872; in x 25.4.

Other specifications: Manufacturer official pages, cited per row, checked . www.cadillac.com

Source detailsFills an empty field only.

Mercedes-Benz C-Class

Specifications: Manufacturer official pages, cited per row, checked . www.mbusa.com

Source detailsExact unit factors: gal x 3.785411784; hp x 0.745699872; in x 25.4; lb x 0.45359237; lb-ft x 1.3558179483314004.

Range and efficiency: Natural Resources Canada, Fuel Consumption Ratings, checked . open.canada.ca

Source detailsNRCan Fuel Consumption Ratings, model year 2026 (Open Government Licence - Canada): model text "C 300 Sedan", engine 2.0 L, transmission A9, Combined (L/100 km) 8.1. Matched to this version by model, engine, transmission and drive; EPA cross-check 8.1 L/100 km (fueleconomy.gov: Mercedes-Benz C300 2026 Rear-Wheel Drive Automatic 9-spd 29 mpg (id 49259)). https://open.canada.ca/data/dataset/98f1a129-f628-4ce4-b24d-6f16bf24dd64

Other specifications: Manufacturer official pages, cited per row, checked . www.mbusa.com

Source detailsFills an empty field only.

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