Bugatti
Chiron
Porsche
918
Bugatti Chiron vs Porsche 918: 2021 Comparison
The short answer
The Bugatti Chiron offers power, while the Porsche 918 excels at fuel economy instead. Choose the Bugatti Chiron if you prioritize power in daily driving, or the Porsche 918 if fuel economy matters more for your needs. Both are covered by real owner reports on CarWizz.
Specs side by side
What owners say
Chiron
Overall
Extremely positive sentiment overall, with the vehicle universally praised as a monumental engineering achievement. It is described as the perfect evolution of its predecessor, offering a 300+ mph (483+ km/h) top speed capability, immense high-speed stability, and significant dynamic improvements over earlier models. The Chiron is celebrated for being both an incredibly fast hypercar and a comfortable, luxurious grand tourer, capable of being driven by anyone.
Best version to buy
Chiron Super Sport 300+ is specifically highlighted for its top speed credentials and performance figures. The Chiron Sport and Chiron Pur Sport are also mentioned in comparative lists, but insufficient data exists to declare a consensus "best" version.
Known issues
- ⚠Extremely high maintenance and service costs: cited as approximately €50,000 ($54,000 USD) per year for basic upkeep, with service charges described as 5x higher than some competitors. Frequency: recurrent.
- ⚠Tire durability concerns: tires reportedly cracking after approximately 4,000 km (2,485 miles) and wearing out in as little as 20 miles (32 km) when driven at top speed. Frequency: recurrent.
- ⚠Radiator design flaw: mentioned as a cause of constant radiator issues related to the W16 engine layout. Frequency: isolated.
918
Overall
Overwhelmingly positive sentiment based on owner and enthusiast discussions. The vehicle is universally praised as an exceptional, timeless, and groundbreaking hypercar. It is frequently described as a "dream machine," "sexy beast," and "beautiful" with an "amazing design." A significant point of admiration is its plug-in hybrid powertrain, which combines a high-revving, naturally aspirated V8 engine with electric motors, noted for providing a pleasurable, linear, and predictable driving experience while achieving impressive fuel efficiency (noted as 75 MPGe in one mention).
Best version to buy
Weissach Package: This option is specifically identified and praised for its special aero package, magnesium wheels, and reduced weight. It is considered the ultimate and most desirable configuration, with the Martini racing livery on a Weissach-equipped car cited as a "great spec" and "hero spec."
Known issues
- ⚠Insufficient owner data available. The provided discussions are overwhelmingly focused on admiration, with no recurring criticisms or mechanical issues mentioned from an ownership perspective.
The verdict
The Porsche 918 is the better choice for most buyers.
It has better fuel economy on its best-equipped version than the Bugatti Chiron, based on the data above. If power matters more to you than running costs, the Bugatti Chiron is worth a closer look instead.
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Frequently asked questions
Which is more reliable, the Bugatti Chiron or the Porsche 918?
Owner reports show similar reliability sentiment for the Bugatti Chiron and the Porsche 918. Check the known issues listed above for specific differences between the two.
Which is better for families, the Bugatti Chiron or the Porsche 918?
Both seat a similar number of passengers based on our data. The Bugatti Chiron is classed as a Coupe, the Porsche 918 as a Roadster, which affects cargo space and ride height for family use.
Which has better fuel economy, the Bugatti Chiron or the Porsche 918?
The Porsche 918 is more fuel-efficient on paper: 3.1 L/100km combined versus 21.5 L/100km for the Bugatti Chiron, based on the best-equipped catalogued version of each.
Which is cheaper to maintain, the Bugatti Chiron or the Porsche 918?
Exact maintenance costs aren't in our data, but reliability signals above are the closest proxy: fewer reported issues generally means lower repair costs over time.