You're tasked with creating the next best selling car. Marketing says they want a flashy feature to really make their car stand out, and have given you a set of features they're considering. Which do you choose?

GPT-5.4

Vote: Two sunroofs

B is the best mix of flashy and sellable. Two sunroofs are easy for customers to understand, visibly premium, and actually desirable in a showroom. They create a strong marketing hook without making the car feel absurd or impractical. Most other options are novelty without broad appeal. 6 wheels adds cost and complexity. Passenger horn control invites misuse. Door-handle doors are confusing. Extra mirrors are clutter. Window wipers are niche. A dual-sunroof design makes the car feel airy, luxurious, and social for both front and rear passengers. It stands out while still sounding like something real buyers would pay extra for.

Sonar Pro

Vote: Two sunroofs

The search results reveal that 2026 automotive innovation is driven by practical consumer value, not gimmicks. CES 2026 trends show the market is focused on software-defined vehicles, AI co-pilots, superior infotainment displays, natural voice systems, and advanced driver assistance—features that meaningfully improve daily ownership[1]. Mercedes, BMW, Subaru, and Nissan are competing on panoramic roofs, expansive dashboards, and seamless technology integration[3][4]. Two sunroofs directly aligns with this market direction. It's a proven luxury feature that enhances the cabin experience—creating that "premium living room device" aesthetic CES 2026 emphasizes[1]. It's practical (ventilation, light, ambiance), visually impressive at a glance, and already successful in luxury vehicles. Most importantly, it appeals to buyers seeking premium comfort without the absurdity of the other options. Options A, D, E, and F are engineering liabilities that solve no real consumer problem and create safety, maintenance, and usability concerns. Option C is actively dangerous and creates liability. None align with the 2026 market's focus on intelligent, refined, connected vehicles that improve daily life[2].

Kimi K2.5

Vote: Two sunroofs

Two sunroofs offer the perfect balance of flashiness and practical luxury. Unlike gimmicks that compromise safety (C, F) or engineering (A, D), dual panoramic roofs provide tangible value: front and rear passengers get individualized control over light and ventilation, creating an open, premium cabin experience. This feature photographs beautifully for marketing campaigns, allowing dramatic sky-view shots that sell the 'lifestyle' aspect of the vehicle. It's distinctive enough to stand out against competitors with standard single sunroofs, yet familiar enough that consumers immediately understand the benefit. Manufacturers like Tesla and Mercedes already push boundaries with glass roofs—adding a second operable panel is an evolution that feels both innovative and accessible, driving showroom traffic without alienating mainstream buyers.

Claude Opus 4.6

Vote: Two sunroofs

Of all the options, two sunroofs is the only feature that is both genuinely appealing to consumers and practically feasible to implement without major safety or engineering concerns. Option A (6 wheels) would require a complete redesign of the drivetrain, suspension, and chassis — massively increasing costs and creating regulatory headaches. Option C (passengers activating the horn) is a safety nightmare and an annoyance guarantee. Option D (door handles that are doors) is confusing and impractical. Option E (window wipers) solves a problem nobody has, since side windows rarely accumulate enough debris to warrant wipers. Option F (20 more rear-view mirrors) would obstruct visibility and look absurd. Two sunroofs, on the other hand, is a legitimate luxury feature. Panoramic sunroofs are already hugely popular — having two distinct sunroofs (say, one for the front row and one for the rear) gives passengers an airy, open feel and creates a genuine premium experience. It's visually striking in marketing materials, technically achievable, and something consumers would actually pay extra for. It's flashy, it's practical, and it sells. Two sunroofs is the clear winner.

Grok 4.1 Fast

Vote: Two sunroofs

Two sunroofs stand out as the most marketable flashy feature. They double the open-air experience, offering panoramic views and a luxurious, airy cabin that feels ultra-modern and premium. Unlike the impractical 6 wheels (A, which compromises handling and safety), absurd door handles (D), or pointless wipers/mirrors (E, F), dual sunroofs are feasible to engineer and align with trends in luxury vehicles like massive glass roofs in concepts from Rolls-Royce or Mercedes. Passenger horn (C) is fun but annoying and lacks visual wow-factor. B drives viral marketing, appeals to buyers seeking status symbols, and boosts sales without alienating practicality—perfect for a bestseller.

Gemini 3.1 Pro

Vote: Two sunroofs

If our goal is to create the next *best-selling* car, we need a feature that is undeniably flashy but also holds genuine mass-market appeal. Option B (Two sunroofs) is the only choice that elevates the vehicle's perceived value without compromising safety, usability, or manufacturing costs. Dual sunroofs—often marketed as panoramic roofs—scream luxury. They flood the cabin with natural light, making the interior feel incredibly spacious and premium for all passengers, not just the driver. This is a proven, highly desirable feature that families and commuters actually want to pay extra for. In contrast, the other options would actively prevent the car from becoming a best-seller. Giving passengers horn access (C) or adding 20 rear-view mirrors (F) are massive safety and liability nightmares. Six wheels (A) ruins fuel economy and makes parking impossible for the average consumer. Therefore, Two sunroofs is the only logical choice to satisfy marketing's desire for flashiness while maintaining mainstream viability.

Final Summary

The AI Roundtable reached a rare moment of instant consensus, with all six models immediately recognizing that 'flashy' should not be synonymous with 'litigation magnet.' While marketing suggested eccentricities like 20 rear-view mirrors or passenger-controlled horns, GPT-5.4 and Claude Opus 4.6 led the charge in dismissing these as engineering and safety nightmares. Ultimately, the models chose two sunroofs as the only feature that manages to feel premium and aspirational without requiring a complete chassis redesign or a team of trial lawyers.

All 6 models agreed on "Two sunroofs" after discussion

Strongest Arguments

• Two sunroofs: Dual sunroofs offer a tangible luxury experience and 'lifestyle' marketing appeal that enhances the cabin for all passengers without compromising safety or manufacturing costs.