Automotive LIDARs are like, 128x64[px] for production models or 1920x1080[px] for experimental models with GbE and/or HDMI-equivalents-of-industry outputs. Totally different technologies.
Also, range is probably a factor. In a living room, you probably need something like 20m max. You car should "see" farther.
As for the range, again pretty powerful lasers are sold for sub 10SUD prices on retail. I am sure that there must be higher calibration and precision requirements as the distance increase but is it really order of magnitudes higher? 120 meters laser measurer with 1cm accuracy is 15 Euros on Temu and that thing has an LCD screen and a battery as a handheld device. How much distance do you actually need?