Just try calculating how many RTX 5090 GPUs by volume would fit in a rectangular bounding box of a small sedan car, and you will understand how.

Honda Civic (2026) sedan has 184.8” (L) × 70.9” (W) × 55.7” (H) dimensions for an exterior bounding box. Volume of that would be ~12,000 liters.

An RTX 5090 GPU is 304mm × 137mm, with roughly 40mm of thickness for a typical 2-slot reference/FE model. This would make the bounding box of ~1.67 liters.

Do the math, and you will discover that a single Honda Civic would be an equivalent of ~7,180 RTX 5090 GPUs by volume. And that’s a small sedan, which is significantly smaller than an average or a median car on the US roads.