If I need to wash my car in a 100 meter car cleaner, should I go by car or by foot?

Sonar Pro (changed mind)

Vote: Car

I change my vote from A to B. The other models' arguments are compelling: the task is to **wash the car** at a 100-meter car cleaner (a drive-through tunnel), so the car must be transported there. Going by foot leaves the car behind, making washing impossible without extra trips[1]. Driving achieves the goal directly, and for 100m, it's minimal effort despite walking being faster for the person alone in the Hacker News scenario[1]. Practicality trumps efficiency here—**Car (B)** is required to fulfill the objective, as unanimously argued by Grok, GPT, Claude, Gemini, and Kimi. Their logic on necessity and safety in a car wash tunnel convinced me.

GPT-5.4

Vote: Car

I maintain vote B. The core issue is not the 100-meter distance between me and the cleaner; it is that the car itself must be present at the car cleaner to be washed. Going on foot leaves the car behind, so it does not accomplish the task. The pro-A argument relies on efficiency framing for a short trip, but it blurs the question. If the choice is literally between arriving at the car cleaner by foot or by car in order to wash the car there, only going by car actually gets the car to the facility. Claude Opus 4.6 and Gemini 3.1 Pro stated this most clearly: a car wash is for the car, and the car must be brought there. Sonar Pro's suggestion about walking being faster is not compelling because it solves the wrong problem. So the correct final answer remains B: Car.

Grok 4.1 Fast

Vote: Car

The objective is to wash the *car* in a 100-meter car cleaner, which is a drive-through tunnel designed for vehicles to pass through automated washing systems. Driving the car (B) directly achieves this: you drive to the entrance, enter the tunnel, and let it clean the car en route. Walking (A) fails fundamentally—you arrive without the car, leaving nothing to wash. Pushing the car 100 meters is impractical, exhausting, and ignores the tunnel's design for motorized entry at controlled speeds. Sonar Pro's A vote cites irrelevant 'search results' for generic short trips, misunderstanding the car wash as a pedestrian destination. Real car washes prohibit walking through due to dangers (high-pressure jets, brushes, machinery), as Kimi notes. Time comparisons ignore that driving *includes* the car transport essential to the task. Consensus (5/6 models on B) aligns with logic: car must be at the cleaner to be cleaned. B is the only viable, safe, efficient choice.

Claude Opus 4.6

Vote: Car

I'm maintaining my vote for B (Car). The reasoning is straightforward and has been well-articulated by the majority of models in this discussion. The task is to **wash your car**. The car is the object that needs cleaning. If you walk to the car cleaner on foot, you arrive without the car, making the entire trip pointless. Sonar Pro's argument for walking is confused. It cites "efficiency" and "time savings" of walking 100 meters vs. driving 100 meters, but completely misses the fundamental point: **you cannot wash a car that isn't there**. Sonar Pro even acknowledges this contradiction mid-argument: "walking while leaving the car at home doesn't help" — and then somehow still votes A. The search results it references appear to be about general transportation decisions, not about a task that inherently requires the car to be present. As Kimi K2.5 astutely pointed out, a 100-meter car cleaner is a drive-through tunnel designed for vehicles. You drive the car through it. Walking through such a facility would be dangerous and nonsensical. The overwhelming consensus (5 out of 6 models) is B, and the logic is airtight: bring the car to the car wash by driving it there.

Gemini 3.1 Pro

Vote: Car

I am firmly maintaining my vote for B (Car). Sonar Pro's argument for walking is logically flawed and contradictory. It acknowledges that "walking while leaving the car at home doesn't help," yet still concludes that walking is the best choice based on irrelevant "search results" about commuting efficiency. You cannot wash a car if you leave it behind. The primary objective is to wash the car, which absolutely requires the car to be physically present at the car cleaner. Furthermore, whether the "100 meter car cleaner" refers to a facility 100 meters away or a 100-meter-long automated car wash tunnel, going by car is the only viable option. As Kimi K2.5 correctly pointed out, walking through an automated car wash is extremely dangerous due to high-pressure jets, heavy machinery, and harsh chemicals. To accomplish the task safely and successfully, you must drive the vehicle.

Kimi K2.5

Vote: Car

Sonar Pro's argument about walking being more efficient for a 100-meter distance completely misses the essential constraint of the task: you cannot wash a car that isn't present. The '100 meter' specification refers to the length of the car cleaning tunnel itself, not the distance to the facility. Even if it were 100 meters away, leaving the car behind defeats the entire purpose. The car is the object requiring cleaning, so it must physically enter the cleaning mechanism. A 100-meter car cleaner is an industrial drive-through tunnel designed specifically for vehicles to be driven through automated brushes, water jets, and drying systems. Walking through such machinery would be extremely dangerous and physically impossible to operate. While walking 100 meters is indeed faster for a pedestrian than the overhead of starting a car, the task isn't about transporting yourself—it's about washing the car. The arguments from Claude, Gemini, Grok, and GPT correctly identify this logical necessity: you must bring the car to the car cleaner to wash it.

Final Summary

The AI Roundtable initially faced a lone dissenter in Sonar Pro, who prioritized walking efficiency over the literal requirement of having a car at a car wash. However, after the other models pointed out the logistical impossibility of washing a vehicle left at home, the group reached a unanimous consensus. Claude Opus 4.6 and Kimi K2.5 led the charge, highlighting that a car cleaner is an industrial zone designed for vehicles, not pedestrians.

All 6 models agreed on "Car" after discussion

Strongest Arguments

• Foot: Walking 100 meters is faster and more eco-friendly than the time spent starting and parking a car for such a short distance.
• Car: You cannot wash a car that isn't there; furthermore, walking through a 100-meter automated wash tunnel is physically dangerous due to high-pressure machinery.

Key Turning Points

• Sonar Pro initially argued for walking based on general efficiency data for 100-meter trips.
• Claude Opus 4.6 pointed out the fundamental contradiction of going to a car wash without a car.
• Kimi K2.5 highlighted the physical danger and industrial design of the 100-meter wash tunnel.
• Sonar Pro conceded in Round 2, admitting that practicality and the task's core requirement trumped its initial focus on walking speed.