Lamborghini
Sian
McLaren
P1
Lamborghini Sian vs McLaren P1: 2020 Comparison
The short answer
Based on available data, the McLaren P1 comes out ahead of the Lamborghini Sian on fuel economy and 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.
Specs side by side
What owners say
Sian
Overall
Sentiment is overwhelmingly positive, focused on the vehicle's status as an exclusive, technologically significant flagship. The Sian is universally recognized as a rare, multi-million dollar hypercar with a production run of only 63 coupes and 19 roadsters to honor Lamborghini's founding year. Owner and enthusiast discussions are dominated by admiration for its dramatic, angular design, though some find the aesthetic divisive or a continued evolution of the established Aventador silhouette.
Best version to buy
Insufficient owner data available to distinguish between coupe and roadster variants based on driving experience. All discussions reference the vehicle's exclusivity and technological premise rather than comparing trim or configuration choices.
Known issues
- ⚠Design language considered derivative or ugly by some: recurrent criticism that the Sian's design is a variation of the existing Aventador/Gallardo silhouette, lacking novelty. Frequency: recurrent.
- ⚠Hybrid system perceived as insignificant: skepticism that the 34 hp electric motor provides a meaningful performance benefit, especially compared to hybrid systems in competitors like the LaFerrari. Frequency: recurrent.
- ⚠Perceived inheritance of Aventador platform flaws: isolated mention that the Sian carries over potential drawbacks from the Aventador, including its weight and gearbox characteristics. Frequency: isolated.
P1
Overall
Overwhelmingly positive sentiment focused on the vehicle's design, performance pedigree, and status as a landmark hypercar. The aesthetic is consistently praised as "amazing," "sexy," and "gorgeous," with specific acclaim for its rear design and overall lines. It is widely regarded as a significant, era-defining vehicle, frequently mentioned alongside the Porsche 918 and Ferrari LaFerrari as part of the "hybrid holy trinity" that changed the hypercar landscape.
Best version to buy
Insufficient owner data available. The P1 GTR track-only variant is mentioned and described as looking like a "spaceship," but there is no comparative ownership feedback to declare it a "best" version over the standard road car.
Known issues
- ⚠Frequent maintenance and reliability concerns: requires being in the shop "basically every couple hundred miles" for repairs and upkeep, shared with other hypercars like the Veyron and LaFerrari. Frequency: isolated.
- ⚠High cost of exclusive options: full carbon tinted body was cited as an approximately $750,000 option at launch due to complex manufacturing. Frequency: isolated.
The verdict
The McLaren P1 is the better choice for most buyers.
It has better fuel economy on its best-equipped version than the Lamborghini Sian, based on the data above. If power matters more to you than running costs, the Lamborghini Sian is worth a closer look instead.
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Frequently asked questions
Which is more reliable, the Lamborghini Sian or the McLaren P1?
Owner reports show similar reliability sentiment for the Lamborghini Sian and the McLaren P1. Check the known issues listed above for specific differences between the two.
Which is better for families, the Lamborghini Sian or the McLaren P1?
Both seat a similar number of passengers based on our data. The Lamborghini Sian is classed as a Roadster, the McLaren P1 as a Coupe, which affects cargo space and ride height for family use.
Which has better fuel economy, the Lamborghini Sian or the McLaren P1?
The McLaren P1 is more fuel-efficient on paper: 8.3 L/100km combined versus 18.5 L/100km for the Lamborghini Sian, based on the best-equipped catalogued version of each.
Which is cheaper to maintain, the Lamborghini Sian or the McLaren P1?
Exact maintenance costs aren't in our data, but owner reports mention cost-related concerns more often for the McLaren P1 than the Lamborghini Sian. See the known issues comparison above.