The short answer
Based on available data, the Lamborghini Diablo comes out ahead of the Ferrari F355 on power. Check the specs table and owner sentiment below for the full comparison before deciding between the two. Both are covered by real owner reports on CarWizz.
Overall
Extremely positive sentiment regarding the car's design, driving experience, and emotional appeal, but this is heavily tempered by a very strong and consistent consensus on prohibitively high and complex maintenance costs. The F355 is widely praised as one of the most beautiful and elegant Ferraris ever made, with its V8 engine sound frequently cited as one of the greatest of all time. It is described as the "best analog Ferrari ever," offering a visceral, rewarding, and nimble driving experience, particularly with the gated manual transmission.
Best version to buy
Manual Transmission (Gated) models are strongly preferred over the F1 electro-hydraulic semi-automatic transmission, with the manual cited as a key part of the pure, analog driving experience. The Berlinetta (coupe) and GTS (targa) are both highly regarded, with the Spider (convertible) sometimes mentioned as the least desirable body type, especially in undesirable colors.
Known issues
Overall
Owner sentiment is overwhelmingly positive, characterized by deep nostalgia and reverence for the Diablo as a definitive 1990s supercar icon. It is consistently described as a raw, powerful, and dramatic vehicle that embodies the quintessential Lamborghini spirit of the era. The design, particularly its evolution from the Countach, is frequently highlighted as a landmark achievement.
Best version to buy
Insufficient owner data available to declare a consensus "best" road version. However, specific high-performance variants are frequently singled out in different contexts.
Known issues
The verdict
The Lamborghini Diablo is the better choice for most buyers.
It has more power on its best-equipped version than the Ferrari F355, based on the data above. If efficiency matters more to you than outright power, the Ferrari F355 is worth a closer look instead.
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Which is more reliable, the Ferrari F355 or the Lamborghini Diablo?
Owner reports show similar reliability sentiment for the Ferrari F355 and the Lamborghini Diablo. Check the known issues listed above for specific differences between the two.
Which is better for families, the Ferrari F355 or the Lamborghini Diablo?
Both seat a similar number of passengers based on our data. The Ferrari F355 is classed as a Cabriolet, the Lamborghini Diablo as a Coupe, which affects cargo space and ride height for family use.
Which has better fuel economy, the Ferrari F355 or the Lamborghini Diablo?
Fuel consumption data is limited for one or both models. Check the specs table above for the figures available on each catalogued version.
Which is cheaper to maintain, the Ferrari F355 or the Lamborghini Diablo?
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.