I want to wash my car. The car wash is 50 meters away. Should I walk or drive?

GPT-5.5

Answer: You should walk to the car wash rather than drive.

Because the car wash is only 50 meters away, walking is simpler, safer, and avoids the unnecessary hassle of starting, moving, and parking the car for such a short distance. If you are washing the car there, you can walk over first to confirm availability, pricing, or whether you need supplies. The only reason to drive would be if the car itself must be physically taken into the wash bay or service area; in that case, drive the car the short distance. But if the choice is simply about getting yourself there, walking is the better option.

Gemini 3.5 Flash

Answer: You should drive, because you cannot wash your car if you leave it behind.

While 50 meters is an incredibly short distance that would normally warrant walking, the primary objective is to wash your car. If you walk to the car wash, your vehicle remains at home, making it impossible to actually perform the wash. Therefore, despite the extremely short distance, driving the car to the facility is the only practical way to accomplish your goal. Just be mindful of safety during such a short trip, and ensure the engine has a moment to idle if necessary, though it is primarily a logistical requirement to get the vehicle to the cleaning equipment.

Grok 4.3

Answer: You should drive to the car wash.

The goal is to wash your car, which requires bringing the vehicle to the car wash 50 meters away. Walking there would achieve nothing toward that objective since the car would remain at home. Although 50 meters is a trivial distance, driving is the only practical way to transport the car for cleaning.

Claude Opus 4.7

Answer: You should walk to the car wash.

Driving 50 meters is impractical and counterproductive for several reasons. First, 50 meters is roughly a 30-40 second walk — less time than it would take to get into your car, start the engine, buckle up, and pull out. The convenience argument for driving simply doesn't apply at this distance. Second, you're going to a car wash. Short trips with a cold engine are the worst kind of driving for your vehicle: the engine doesn't reach optimal operating temperature, fuel efficiency is poor, and emissions are disproportionately high. You'd also be dirtying the car further (exhaust residue, road grime) right before washing it, which is self-defeating. Third, there's a logical puzzle: if you drive to the car wash, you presumably drive back too — but the car will be clean, and any drive, however short, exposes it to dust and debris. Walking avoids this entirely on the outbound leg. The only scenarios where driving makes sense are if you have a mobility limitation, if you're carrying heavy supplies, or if the car wash requires you to arrive in the vehicle (which, for a self-service or drive-through wash, it does). If it's a drive-through or bay wash where the car itself needs to be there, then obviously you must drive — but that's a constraint of the task, not a preference. Assuming you mean 'should I walk over to buy a wash / use equipment,' walk.

Final Summary

The AI Roundtable split 2-2 on this logistical puzzle. Gemini 3.5 Flash and Grok 4.3 argued you should drive because the car must be present to be cleaned. In contrast, Claude Opus 4.7 and GPT-5.5 suggested walking to avoid engine wear and the irony of a 50-meter drive.

Models were divided (2 vs 2)