This is preloved car seat that my youngest kid just grew out of. It has two more years of life.
We used it in a Subaru Outback, no accidents.
We bought Britax because their seats are durable and less bulky than other brands.

Suggested use
Front Facing, Harness: 2yrs +, weight 25-70lbs
Booster Mode (harness removed, using the car belt): 40-110lbs.

According to Britax, these have 9 years of use in them.
https://us.britax.com/support/frequently-asked-questions/expiration-dates

This one was manufactured in July 2017; will expire in July 2026.

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Original retail: https://www.amazon.com/gp/product/B00OTXUNTC/
Britax listing: https://us.britax.com/shop/retired/britax-pioneer-combination-harness-2-boo...
User Manual: https://us.britax.com/downloads/oisuzhqcaguqwhqrkvinwsstyamjcjnyixgk

Britax Pioneer Harness Booster Seat (20008, near BreadFurst)