(Image credit: Tom's Guide / John Velasco) I get to test many of the best electric cars available today. While they’re often outfitted with an assortment of cameras, I’m still annoyed that they frequently lack a native dash cam feature. That’s likely why there’s still high demand for standalone dash cams, especially as cars become more tech-heavy. My general problem with some of the best dash cams is that they obscure my view. While some smaller models try to be discreet, the vast majority remain an eyesore when you’re trying to focus on the road. I finally solved this by switching to a dash cam disguised as a rearview mirror: the Rexing M2 Max . For those with older cars lacking a backup camera or touchscreen display, this is an easy upgrade that makes a vehicle feel modern. Now that I’ve used it, I can’t go back to an ordinary dash cam. Here’s why.…