The average new car grew from 4,295 mm long in the 1980–89 to 4,567 mm in the 2020–29 — 6% longer. Measured across 100,840 model variants.
Cars keep getting bigger: the average is 6% longer than in the 1980–89.
| Period | Length (mm) | Sample |
|---|---|---|
| 1980–89 | 4,295 | 6,182 |
| 1990–99 | 4,374 | 12,712 |
| 2000–09 | 4,413 | 29,619 |
| 2010–19 | 4,566 | 40,967 |
| 2020–29 | 4,567 | 11,360 |
Average manufacturer-quoted overall length (mm), grouped by decade of first model year. Values outside 2,500–6,000 mm are dropped as data errors. One row per variant.