2017 head-to-head · Two-Seater

2017 Dodge Viper vs Fiat 124 Spider

MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.

Swap sides
✓ Cheaper to run
$4,232/ year to fuel
14 MPG

RWD · 8.4L 10-cyl · 6-speed manual · 14 MPG

✓ Cheaper to run
$1,975/ year to fuel
30 MPG

The 2017 Fiat 124 Spider is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $1,975 a year to fuel (30 MPG), versus $4,232 for the 2017 Dodge Viper (14 MPG). That's roughly $2,257 a year, or about $11,286 over five years.

Your numbers

Change these to match your driving and local prices. Every figure and chart on this page updates.

Fuel cost over 10 years

  • Dodge Viper
  • Fiat 124 Spider

Side by side

Dodge ViperFiat 124 Spider
$4,232 Your annual fuel cost $1,975
14 MPG Combined efficiency 30 MPG
12 MPG City 26 MPG
19 MPG Highway 35 MPG
623 g/mi Tailpipe CO₂ (g/mi) 298 g/mi
1/10 EPA fuel economy score 7/10
1/10 EPA greenhouse gas score 7/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
8.4L 10-cyl Engine / motor 1.4L 4-cyl turbo
6-speed manual Transmission 6-speed manual
RWD Drivetrain RWD

✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.

Dodge Viper vs Fiat 124 Spider across model years

  • Dodge Viper
  • Fiat 124 Spider

Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.

How they differ

Among 29 2017 two-seaters, the Dodge Viper ranks 23rd and the Fiat 124 Spider 4th for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2017 Dodge Viper or the 2017 Fiat 124 Spider?

Measured by cost to drive, the Fiat 124 Spider. The Dodge Viper is rated 14 MPG combined and the Fiat 124 Spider 30 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2017 Dodge Viper vs. the Fiat 124 Spider per year?

At 15,000 miles a year with $3.95/gal premium gas, about $4,232 for the Dodge Viper and $1,975 for the Fiat 124 Spider.

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