2021 Genesis G70 — Full Specifications
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The 2021 Genesis G70 is a saloon/sedan offered with 2 engines (2L 4-cyl turbo, 3.3L 6-cyl turbo). Its most fuel-efficient configuration returns around 30 mpg (UK) / 25 mpg (US EPA) combined, with 24–30 mpg (UK) across all configurations. Owners often keep a Genesis G70 workshop manual to hand for servicing and repairs.
Compared with the 2020 Genesis G70: Fuel economy is essentially unchanged at around 30 mpg (UK) combined. The engine line-up listed by EPA is unchanged.
Full Specifications
| Engine (most efficient) | 2L 4-cyl turbo |
|---|---|
| Engine options | 2L 4-cyl turbo · 3.3L 6-cyl turbo |
| Transmission (most efficient) | Automatic (S8) |
| Fuel Type | Premium Gasoline |
| Powertrain | Conventional |
| Drive | Rear-Wheel Drive |
| Body Style | Saloon/Sedan |
| Passenger Volume (EPA) | 94 cu ft (2,662 L) |
| Luggage Volume (EPA) | 10 cu ft (283 L) |
| Fuel Economy (UK) | 30 combined / 26 urban / 36 extra-urban mpg |
| Fuel Economy (US EPA) | 25 combined / 22 city / 30 highway mpg |
| CO₂ Emissions | 222 g/km |
| EPA Greenhouse Gas Score | 4 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $3,300 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 5 configurations for the 2021 Genesis G70 across 2 engines (2L 4-cyl turbo, 3.3L 6-cyl turbo). Combined fuel economy ranges from 20 to 25 mpg (US), or 24 to 30 mpg (UK), depending on engine, transmission and drive. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| 2L 4-cyl turbo | Automatic (S8) | All-Wheel Drive | 28 | 23 (20/27) | 240 | $3,550 |
| 2L 4-cyl turbo | Automatic (S8) | Rear-Wheel Drive | 30 | 25 (22/30) | 222 | $3,300 |
| 2L 4-cyl turbo | Manual 6-spd | Rear-Wheel Drive | 26 | 22 (18/28) | 255 | $3,750 |
| 3.3L 6-cyl turbo | Automatic (S8) | All-Wheel Drive | 24 | 20 (17/25) | 284 | $4,100 |
| 3.3L 6-cyl turbo | Automatic (S8) | Rear-Wheel Drive | 24 | 20 (17/26) | 278 | $4,100 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
EPA measures interior passenger volume at 94 cubic feet (about 2,662 litres) and luggage volume at 10 cubic feet (about 283 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2021 Genesis G70
Running Costs: 2021 Genesis G70
Covering around 8,000 miles a year in a 2021 Genesis G70 at 30 mpg combined, expect roughly 1,212 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $3,300 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
Only need this car occasionally? See our buy vs rent comparison.
2021 Genesis G70 Safety Ratings (NHTSA)
No NHTSA crash-test rating is on record for this model year. The NHTSA rates only a subset of vehicles each year; you can browse every rated vehicle on our NHTSA Safety Ratings hub.
Recalls & Owner Complaints (NHTSA)
NHTSA lists 4 safety recall campaigns that include the 2021 Genesis G70 (as of 6 October 2026). Most affected areas: Fuel system (2), Engine and engine cooling (1), Service brakes (1). 1 campaign carried a “do not drive” or “park outside” advisory. A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Fuel system — campaign 24V528000, reported 12 July 2024. Risk: A loss of drive power can increase the risk of a crash.
- Engine and engine cooling — campaign 24V191000, reported 8 March 2024. Risk: An oil leak in the presence of hot engine components can increase the risk of an engine compartment fire.
- Service brakes — campaign 21V161000, reported 10 March 2021. Risk: An electrical short circuit inside the ABS module could cause an engine compartment fire while parked or driving.
- Fuel system — campaign 20V569000, reported 21 September 2020. Risk: Insufficient fuel supply can result in an engine stall, increasing the risk of a crash.
Owners have filed 6 complaints with NHTSA about the 2021 Genesis G70. The most-reported areas are Engine (4), Unspecified (3), Fuel/propulsion system (2). Complaints include 1 reported crash, 1 reported fire.
Used-buyer checklist for the 2021 Genesis G70
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Fuel system (2 recall campaigns · 2 owner complaints) — Ask whether any fuel-pump or fuel-system recalls were completed, and watch for hard starting or stalling.
- Engine cooling (1 recall campaign) — Check coolant level, look for leaks and make sure the temperature stays steady in traffic.
- Brakes (1 recall campaign) — Brake firmly from speed and look for pulling, vibration or a soft pedal; ask for brake service history.
- Engine (4 owner complaints) — Listen for unusual noise on a cold start, check for warning lights and ask for the service records.
Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.
How It Compares
Genesis models in our database average about 27 mpg (UK) combined on their most efficient configuration; the 2021 Genesis G70's 30 mpg is 3 mpg above that make average. Its 222 g/km CO₂ figure is 27 g/km lower than the 249 g/km Genesis average.
Of the 8 Genesis G70 model years we cover, the 2021 is the most economical on its best configuration (30 mpg UK combined). See every Genesis G70 year side by side.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026
Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.
Recommended Accessories for the 2021 Genesis G70
Frequently Asked Questions
What engine does the 2021 Genesis G70 have?
EPA lists 2 engines for the 2021 Genesis G70: 2L 4-cyl turbo, 3.3L 6-cyl turbo. The most fuel-efficient configuration pairs the 2L 4-cyl turbo with a automatic (s8).
What is the fuel economy of the 2021 Genesis G70?
The most efficient configuration returns around 30 mpg (UK) combined, or 25 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 24 to 30 mpg.
How much does the 2021 Genesis G70 cost to fuel per year?
The US EPA estimates about $3,300 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.
Does the 2021 Genesis G70 have any recalls?
NHTSA lists 4 safety recall campaigns that include the 2021 Genesis G70 (as of 6 October 2026). Most affected areas: Fuel system (2), Engine and engine cooling (1), Service brakes (1). 1 campaign carried a “do not drive” or “park outside” advisory. A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
What are the most common problems reported for the 2021 Genesis G70?
Among the 6 owner complaints filed with NHTSA, the most-reported areas are Engine (4 complaints), Unspecified (3 complaints), Fuel/propulsion system (2 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
How much interior and luggage space does the 2021 Genesis G70 have?
EPA measures interior passenger volume at 94 cubic feet (about 2,662 litres) and luggage volume at 10 cubic feet (about 283 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.