Alfa Romeo
4C
Porsche
Cayman
Alfa Romeo 4C vs Porsche Cayman: 2017 Comparison
The short answer
The Alfa Romeo 4C offers fuel economy, while the Porsche Cayman excels at power instead. Choose the Alfa Romeo 4C if you prioritize fuel economy in daily driving, or the Porsche Cayman if power matters more for your needs. Both are covered by real owner reports on CarWizz.
Specs side by side
What owners say
4C
Overall
Owners describe the 4C as a uniquely charming and frustrating car, often calling it the "worst, best, most awful, and most fantastic car" they have owned. The dominant sentiment is that it is a pure, raw, and spiritual driver's car that is deeply impractical, uncomfortable, and quirky. Praise focuses on its exotic looks, carbon fiber tub, intoxicating sounds, and go-kart-like handling, while criticism centers on its harsh ride, lack of power steering, poor interior, tramlining, and the required periodic chassis bolt retorquing.
Best version to buy
Insufficient owner data available to declare a consensus. Owners mention both the Launch Edition and the 2018 coupe, but no single version is universally preferred.
Known issues
- ⚠- Chassis bolt retorquing required every 12,000 miles or 3 years: Frequency: very frequent. This is a standard maintenance item for the carbon fiber tub design, not a defect, but it is a recurring cost and concern for owners.
Cayman
Overall
Extremely positive sentiment across all generations, with the Cayman consistently praised as a benchmark for sports car handling, balance, and driver engagement. Long-term owner reports describe it as a "perfect sports car" that is rewarding on backroads and surprisingly capable as a daily driver, with good fuel economy and practical storage. The mid-engine chassis is universally lauded for its precision, rotation, and direct steering feel.
Best version to buy
Consensus is split by generation preference. For the 981 generation (2012-2016), the GTS trim with its naturally aspirated flat-six is highly regarded for its balance of power and character.
Known issues
- ⚠High maintenance and repair costs associated with German luxury brands. Frequency: very frequent.
- ⚠Complexity and quantity of interior buttons, with some described as feeling cheap. Frequency: recurrent.
- ⚠Prohibitive servicing costs for Porsche Carbon Ceramic Brakes (PCCB), specifically rotor replacement. Frequency: isolated.
The verdict
The Alfa Romeo 4C is the better choice for most buyers.
It has better fuel economy on its best-equipped version than the Porsche Cayman, based on the data above. If power matters more to you than running costs, the Porsche Cayman is worth a closer look instead.
Explore further
Not sure which one fits you?
Answer a few questions and get a personalized recommendation.
Frequently asked questions
Which is more reliable, the Alfa Romeo 4C or the Porsche Cayman?
Owner reports show similar reliability sentiment for the Alfa Romeo 4C and the Porsche Cayman. Check the known issues listed above for specific differences between the two.
Which is better for families, the Alfa Romeo 4C or the Porsche Cayman?
Both seat a similar number of passengers based on our data. The Alfa Romeo 4C is classed as a Cabriolet, the Porsche Cayman as a Coupe, which affects cargo space and ride height for family use.
Which has better fuel economy, the Alfa Romeo 4C or the Porsche Cayman?
The Alfa Romeo 4C is more fuel-efficient on paper: 6.9 L/100km combined versus 10.3 L/100km for the Porsche Cayman, based on the best-equipped catalogued version of each.
Which is cheaper to maintain, the Alfa Romeo 4C or the Porsche Cayman?
Exact maintenance costs aren't in our data, but owner reports mention cost-related concerns more often for the Porsche Cayman than the Alfa Romeo 4C. See the known issues comparison above.