Cadillac XTS Limo vs Ram Promaster City
The Ram Promaster City is the more efficient of the two: it reaches 24 mpg combined versus 17 mpg for the Cadillac XTS Limo, a 7 mpg advantage and costs about $1,050 less per year to fuel.
Across 5 measured categories, the Ram Promaster City leads in 5. Figures are EPA test data, not manufacturer claims.
2015–2019
Cadillac XTS Limo
Special Purpose Vehicle 2WD · 5 configurations
2015–2022
Ram Promaster City
Special Purpose Vehicle 2WD · 8 configurations
Head-to-head specifications
| Metric | Cadillac XTS Limo | Ram Promaster City |
|---|---|---|
| Best combined MPG | 17 mpg | 24 mpg ✓ |
| Best city MPG | 15 mpg | 21 mpg ✓ |
| Best highway MPG | 21 mpg | 28 mpg ✓ |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $3,600 | $2,550 ✓ |
| Lowest CO2 output | 521 g/mi | 374 g/mi ✓ |
| Engines offered | SIDI | 2.4 |
| Transmissions | Automatic (S6) | Automatic 9-spd |
| Drivetrains | Front-Wheel Drive | Front-Wheel Drive |
| Fuel types | Regular | Regular |
| EPA class | Special Purpose Vehicle 2WD | Special Purpose Vehicle 2WD |
| Years covered | 2015–2019 | 2015–2022 |
| Configurations on record | 5 | 8 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
XTS Limo vs Promaster City: common questions
Which is better on gas, the Cadillac XTS Limo or the Ram Promaster City?
The Ram Promaster City is the more efficient of the two: it reaches 24 mpg combined versus 17 mpg for the Cadillac XTS Limo, a 7 mpg advantage and costs about $1,050 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the Ram Promaster City runs about $2,550 a year in fuel at its most efficient configuration, versus about $3,600 for the Cadillac XTS Limo — a difference of roughly $1,050 per year.
What engines do the XTS Limo and Promaster City offer?
Cadillac XTS Limo: SIDI. Ram Promaster City: 2.4.
Are they in the same vehicle class?
Yes — the EPA classifies both the Cadillac XTS Limo and the Ram Promaster City as Special Purpose Vehicle 2WD, so they compete directly.
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