CARS.md add 2022 elantra

Author: pd0wm

docs/CARS.md

@@ -99,7 +99,7 @@
 | Genesis   | G90 2018                        | All               | Stock            | 0mph               | 0mph         |
 | GMC       | Acadia 2018<sup>1</sup>         | Adaptive Cruise   | openpilot        | 0mph               | 7mph         |
 | Hyundai   | Elantra 2017-19                 | SCC + LKAS        | Stock            | 19mph              | 34mph        |
-| Hyundai   | Elantra 2021                    | SCC + LKAS        | Stock            | 0mph               | 0mph         |
+| Hyundai   | Elantra 2021-22                 | SCC + LKAS        | Stock            | 0mph               | 0mph         |
 | Hyundai   | Elantra Hybrid 2021             | SCC + LKAS        | Stock            | 0mph               | 0mph         |
 | Hyundai   | Genesis 2015-16                 | SCC + LKAS        | Stock            | 19mph              | 37mph        |
 | Hyundai   | Ioniq Electric 2019             | SCC + LKAS        | Stock            | 0mph               | 32mph        |