Rankings · 2018

Least fuel-efficient midsize cars of 2018

Among 59 midsize cars from 2018 in the database (one per model family), the 2018 Bentley Flying Spur is the least fuel-efficient at 16.8 l/100km, against a class average of 10.0 l/100km. The spread from best to worst is 4.5–16.8 l/100km. Electric vehicles are ranked separately by range.

Ranked59one per model family
Average10 l/100km
Leader2018 Bentley Flying Spur

Top 10

12018 Bentley Flying Spur16.8 l/100km
22018 Bentley Mulsanne16.8 l/100km
32018 Rolls-Royce Wraith16.8 l/100km
42018 BMW M513.8 l/100km
52018 Cadillac CTS-V13.8 l/100km
62018 Dodge Challenger13.8 l/100km
72018 Audi S613.1 l/100km
82018 Audi S713.1 l/100km
92018 Audi S813.1 l/100km
102018 BMW M550i xDrive12.4 l/100km

Full ranking

#VehicleCombinedvs avgCO2WeightRecallsNCAP
12018 Bentley Flying Spur16.8 l/100km+67%389.6 g/km2,494.8 kg——
22018 Bentley Mulsanne16.8 l/100km+67%405.1 g/km2,711 kg2—
32018 Rolls-Royce Wraith16.8 l/100km+67%380.9 g/km2,440 kg——
42018 BMW M513.8 l/100km+37%323.7 g/km1,982 kg3—
52018 Cadillac CTS-V13.8 l/100km+37%329.3 g/km1,880 kg—4
62018 Dodge Challenger13.8 l/100km+37%325 g/km1,852 kg45
72018 Audi S613.1 l/100km+30%298.3 g/km1,995 kg15
82018 Audi S713.1 l/100km+30%298.3 g/km2,045 kg1—
92018 Audi S813.1 l/100km+30%312.5 g/km2,125 kg1—
102018 BMW M550i xDrive12.4 l/100km+23%282.1 g/km2,304.2 kg1—
112018 Maserati Ghibli S RWD12.4 l/100km+23%292.7 g/km2,091.1 kg——
122018 Alfa Romeo Giulia11.8 l/100km+18%280.2 g/km1,750 kg9—
132018 Ford Fusion AWD11.8 l/100km+18%275.9 g/km2,120.1 kg25
142018 Infiniti Q70 AWD11.8 l/100km+18%274.6 g/km1,841 kg1—
152018 Lincoln Mkz AWD11.8 l/100km+18%277.8 g/km2,126.9 kg25
162018 Lexus LS 500 AWD11.2 l/100km+12%259.1 g/km2,236.2 kg——
172018 Ford Focus RS AWD10.7 l/100km+7%249.8 g/km1,475 kg—5
182018 Infiniti Q50 Red Sport10.7 l/100km+7%251 g/km1,817.5 kg——
192018 Lexus GS 350 AWD10.7 l/100km+7%252.9 g/km1,765 kg2—
202018 Volkswagen Passat10.7 l/100km+7%246.1 g/km1,563 kg45
212018 Acura RLX10.2 l/100km+2%238 g/km1,975 kg15
222018 Audi A6 quattro10.2 l/100km+2%234.9 g/km1,825.3 kg25
232018 Audi A7 quattro10.2 l/100km+2%234.9 g/km1,910 kg2—
242018 BMW 540i xDrive10.2 l/100km+2%236.1 g/km1,999.9 kg2—
252018 Buick Lacrosse AWD10.2 l/100km+2%239.8 g/km1,936.4 kg35

Related rankings

Most efficient midsize cars of 20182017 edition2019 editionSUVs — 2018cars — 2018large cars — 2018pickup trucks — 2018small cars — 2018station wagons — 2018two-seaters — 2018

How this ranking works

Values come from FuelEconomy.gov, EPA certification data and NHTSA records shown on each vehicle's page. Only the best-placed version of each model family is listed, so one model cannot fill the list. Electric vehicles are excluded from fuel-consumption rankings and ranked by range instead.

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