Hyundai Ioniq 5 vs Cadillac Lyriq: fuel economy and fuel cost
In model year 2026 the Hyundai Ioniq 5 is the cheaper of the two to fuel: about $800 a year for its lowest-cost configuration (Ioniq 5 Standard range, 115 MPGe combined), against $1,010 for the Cadillac Lyriq (Lyriq (11 kW Charger), 92 MPGe combined). That is $210 a year, or $1,050 over five years.
Both are classed as Small SUVs by the EPA. Costs assume 15,000 miles a year and the same fuel and electricity prices for both vehicles, using the EPA combined rating (55% city, 45% highway). Each figure is rounded to $10 and every difference is calculated from the rounded values.
The EPA is still publishing model year 2027 ratings, so this page compares model year 2026, the latest complete year.
- Electric
- Small SUVs
Hyundai Ioniq 5
Lowest fuel cost configuration
Ioniq 5 Standard range
$5.33 per 100 miles
15,000 mi/yr, same fuel prices
245 mi EPA range · 29 kWh/100 mi
7 configurations in MY2026
- Electric
- Small SUVs
Cadillac Lyriq
Lowest fuel cost configuration
Lyriq (11 kW Charger)
$6.73 per 100 miles
15,000 mi/yr, same fuel prices
326 mi EPA range · 37 kWh/100 mi
6 configurations in MY2026
What the fuel costs
Annual fuel cost of the lowest-cost configuration
- Hyundai Ioniq 5$800 a year · $5.33 per 100 mi
- Cadillac Lyriq$1,010 a year · $6.73 per 100 mi
Difference per year
$210
Hyundai Ioniq 5 costs less to fuel
Over 5 years
$1,050
$210 a year × 5, 15,000 mi/yr, same fuel prices
Head to head, MY2026
| Measure | Hyundai Ioniq 5 | Cadillac Lyriq |
|---|---|---|
| Lowest-cost configuration | Ioniq 5 Standard range | Lyriq (11 kW Charger) |
| Powertrain | Electric | Electric |
| Combined rating | 115 MPGe (better) | 92 MPGe |
| City rating | 131 MPGe (better) | 100 MPGe |
| Highway rating | 100 MPGe (better) | 83 MPGe |
| EPA range | 245 mi | 326 mi (better) |
| Electricity use | 29 kWh/100 mi (better) | 37 kWh/100 mi |
| Annual fuel cost | $800/yr (better) | $1,010/yr |
| Cost per 100 miles | $5.33 (better) | $6.73 |
| Annual cost range, all configurations | $800–$1,310 | $1,010–$1,160 |
| Configurations in MY2026 | 7 | 6 |
| EPA class | Small SUVs | Small SUVs |
Best configuration by powertrain
| Powertrain | Hyundai Ioniq 5 | Cadillac Lyriq |
|---|---|---|
| Electric | 115 MPGe · $800/yr Ioniq 5 Standard range | 92 MPGe · $1,010/yr Lyriq (11 kW Charger) |
Each cell shows the combined rating and the annual fuel cost of the lowest-cost configuration with that powertrain.
Where each one comes out ahead
Generated from the numbers above, comparing the lowest fuel cost configurations. No subjective judgements.
Hyundai Ioniq 5
- Lower annual fuel cost: $800 vs $1,010
- Higher combined rating: 115 MPGe vs 92 MPGe
- Higher city rating: 131 MPGe vs 100 MPGe
- Higher highway rating: 100 MPGe vs 83 MPGe
Cadillac Lyriq
- Longer EPA range: 326 mi vs 245 mi
Year by year
| Model year | Hyundai Ioniq 5 | Cadillac Lyriq | ||
|---|---|---|---|---|
| Combined | Per year | Combined | Per year | |
| 2026 | 71–115 MPGe | $800–$1,310 | 80–92 MPGe | $1,010–$1,160 |
| 2025 | 71–115 MPGe | $800–$1,310 | 86–92 MPGe | $990–$1,090 |
| 2024 | 99–114 MPGe | $820–$930 | 88–89 MPGe | $1,040–$1,050 |
Earlier model years are costed with today's fuel prices, so the table shows how each model's efficiency changed, not what fuel cost at the time. Ranges cover every configuration of that model year.
Frequently asked questions
Which is cheaper to fuel, the Hyundai Ioniq 5 or the Cadillac Lyriq?
The Hyundai Ioniq 5 is cheaper: about $800 a year against $1,010 for the Cadillac Lyriq, a difference of $210 a year. That compares the lowest-cost configuration of each in model year 2026 at 15,000 miles a year with the same fuel prices.
How much would the Hyundai Ioniq 5 save over five years?
About $1,050 ($210 a year for five years), assuming 15,000 miles a year and the same fuel prices. Your total depends on how much you drive and on local prices; see fuel cost by state.
Which has the better fuel economy rating, the Hyundai Ioniq 5 or the Cadillac Lyriq?
The Hyundai Ioniq 5 is rated 115 MPGe combined against 92 MPGe for the Cadillac Lyriq. City: 131 MPGe vs 100 MPGe. Highway: 100 MPGe vs 83 MPGe. These are the EPA ratings of each model's lowest-cost configuration.
How is the annual fuel cost calculated?
Distance of 15,000 miles a year at the EPA combined rating (55% city, 45% highway). Gasoline is priced at $4.36/gal (EIA U.S. average for regular, Sep 2026) and electricity at 18.3¢/kWh (EIA U.S. residential average, Jul 2026); premium and diesel configurations use their own EIA prices. Each result is rounded to $10, and differences are calculated from the rounded figures.
Are the Hyundai Ioniq 5 and the Cadillac Lyriq in the same class?
Yes. The EPA classes both as Small SUVs.
Explore these cars
- Hyundai Ioniq 5: ratings, trims and every model year
- Cadillac Lyriq: ratings, trims and every model year
- 2026 Hyundai Ioniq 5: all configurations
- 2026 Cadillac Lyriq: all configurations
More comparisons
- Ford Mustang Mach-E vs Hyundai Ioniq 5
- Hyundai Ioniq 5 vs Kia EV6
- Tesla Model Y vs Cadillac Lyriq
- Hyundai Tucson vs Hyundai Ioniq 5
- Tesla Model Y vs Hyundai Ioniq 5
- BMW X3 vs Mercedes-Benz GLC-Class
- Ford Maverick vs Hyundai Santa Cruz
- Hyundai Kona vs Kia Seltos
- Hyundai Santa Fe vs Kia Sorento
- Lexus RX vs Acura MDX
- Lexus RX vs Lexus NX
- Nissan Kicks vs Volkswagen Taos
- All curated comparisons