This goofball did one massive lane change across the entire 99.
Sacramento-area driver and Redditor /u/WittySnhere81 shared head-shaking dashcam footage as she headed south on 99 earlier in October (Oct 16, 2026) to the /r/Sacramento subreddit, showing a goofball in their BMW, starting from the slow lane and making a whole highway lane change across all 4 lanes, almost sideswiping OP as she travelled in the fast lane.
Here’s what that looked like below with the original Reddit thread linked here.
The incident happened on 99 S just before the exit onto 47th Avenue (Exact location on Google Maps linked here.)
As the dashcam shows, OP is driving in the fast lane of 99 S towards Lemon Hill.
Suddenly, a driver in a BMW SUV can be seen slowly but surely making a multi-lane lane change across the entire highway.
Had OP not been paying attention or honked, the BMW driver would’ve smacked the side of OP’s vehicle.
OP gives the BMW driver a honk and steers partway into the breakdown lane to avoid a collision.
The BMW driver can be seen continuing, likely oblivious to the near miss.
“I learned a very important lesson driving here in Sac: ‘It’s not enough to be a good driver; you have to learn how to read and avoid the bad ones,” one of the top comments from /u/ZerinSakech1 reads.
‘Ah, a BMW driver; everything else is self-explanatory,” /u/TheZodiacCrab jokingly added.
“I hate 99 with a passion. I got rear-ended and sideswiped there within 6 mos of my brand new RAV4. I hated that highway with a passion,” /u/EmphasisFront5298 shared.
Highway 99 is often ranked the most dangerous highway in all of California.
In California, an unsafe multi-lane change that nearly causes a sideswipe can be cited under Vehicle Code § 21658(a), with a typical total fine of approximately $238, including penalty assessments. The violation generally carries 1 DMV point.
