My intention was to share accurate data, however it's surprising how difficult it appears to get this. I've done a fair amount of digging today and found different numbers reported for pretty much every spec and every vehicle with quite a bit of variance from different online sources. Sadly the manufacturers do not appear to publish all the specs, so it's very hard to say which numbers are correct. Also hard to verify whether cargo volumes are including space under the cargo floor or not.
I think it's safe to say the Lucid Gravity has far more interior volume in relation to exterior size than any other vehicle in its category. The Outback and Polestar 3 are included even though they don't have a 3rd row as it's surprising how they are not much smaller in exterior dimensions but MUCH smaller in interior cargo volume.
So here's a new table, but it's definitely not guaranteed accurate, but has been cross referenced against multiple online sources.
| Vehicle | Length (in) | Width w/o mirrors (in) | Width w/ mirrors (in) | Height (in) | Frunk Volume (cu ft) | Cargo behind 3rd row (cu ft) | Cargo behind 2nd row (cu ft) | Max cargo, all rear seats folded (cu ft) |
|---|
| Lucid Gravity (7-seat) | 198.2 | 78.7 | 87.2 | 65.2 | 8.4 | 21.0 | 56.2 | 111.9 |
| Tesla Model Y (7-seat) | 187.0 | 75.6 | 83.8 | 63.9 | 4.1 | 12.8 | 26.6 | 67.9 |
| Tesla Model X (7-seat) | 199.1 | 78.7 | 89.4 | 66.1 | 6.6 | 15.0 | 33.8 | 81.7 |
| Subaru Outback | 191.3 | 73.0 | 82.0 | 66.1 | — | — | 32.6 | 75.6 |
| Subaru Ascent (3-row) | 196.8 | 76.0 | 85.7 | 71.6 | — | 17.8 | 43.5 | 75.6 |
| Polestar 3 | 192.9 | 77.4 | 83.5 | 63.5 | 1.1 | — | 17.1 | 49.8 |
| Volvo EX90 (7-seat) | 198.3 | 77.3 | 83.2 | 68.8 | 1.2 | 13.6 | 37.3 | 75.4 |
| Cadillac Escalade IQ (3-row) | 224.3 | 82.4 | 94.1 | 76.1 | 12.2 | 23.6 | 69.1 | 119.1 |
| Cadillac Vistiq (3-row) | 205.6 | 79.8 | 86.7 | 71.0 | — | 15.2 | 43.0 | 80.2 |
| Rivian R1S (3-row) | 200.8 | 81.8 | 88.4 | 77.3 | 11.0 | 17.6 | 48.6 | 90.7 |