Chevrolet Tahoe vs Porsche Cayenne
The Chevrolet Tahoe and Porsche Cayenne are evenly matched on fuel economy — both peak at 24 mpg combined — so the decision comes down to engine choice, drivetrain, and class.
Across 4 measured categories, the Chevrolet Tahoe leads in 2. Figures are EPA test data, not manufacturer claims.
2015–2026
Chevrolet Tahoe
Standard Sport Utility Vehicle 4WD · 77 configurations
2015–2026
Porsche Cayenne
Standard Sport Utility Vehicle 4WD · 97 configurations
Head-to-head specifications
| Metric | Chevrolet Tahoe | Porsche Cayenne |
|---|---|---|
| Best combined MPG | 24 mpg | 24 mpg |
| Best city MPG | 22 mpg ✓ | 21 mpg |
| Best highway MPG | 28 mpg | 29 mpg ✓ |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $3,250 ✓ | $3,300 |
| Lowest CO2 output | 421 g/mi | 174 g/mi ✓ |
| Engines offered | SIDI, 3.0, SIDI; Municipal, SIDI; Stop-Start | SIDI, SIDI; PHEV, 4.0, 3.0 |
| Transmissions | Automatic 10-spd, Automatic 6-spd | Automatic (S8), Automatic (AM8) |
| Drivetrains | Rear-Wheel Drive, 4-Wheel Drive | All-Wheel Drive |
| Fuel types | Premium, Regular, Diesel | Premium, Premium and Electricity, Premium Gas or Electricity |
| EPA class | Standard Sport Utility Vehicle 4WD | Standard Sport Utility Vehicle 4WD |
| Years covered | 2015–2026 | 2015–2026 |
| Configurations on record | 77 | 97 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
Tahoe vs Cayenne: common questions
Which is better on gas, the Chevrolet Tahoe or the Porsche Cayenne?
The Chevrolet Tahoe and Porsche Cayenne are evenly matched on fuel economy — both peak at 24 mpg combined — so the decision comes down to engine choice, drivetrain, and class.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the Chevrolet Tahoe runs about $3,250 a year in fuel at its most efficient configuration, versus about $3,300 for the Porsche Cayenne — a difference of roughly $50 per year.
What engines do the Tahoe and Cayenne offer?
Chevrolet Tahoe: SIDI, 3.0, SIDI; Municipal, SIDI; Stop-Start. Porsche Cayenne: SIDI, SIDI; PHEV, 4.0, 3.0.
Are they in the same vehicle class?
Yes — the EPA classifies both the Chevrolet Tahoe and the Porsche Cayenne as Standard Sport Utility Vehicle 4WD, so they compete directly.
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