take a look at the sidebar, there are approximate prices listed next to each camera

i've gifted a viofo a129 pro duo in the past with success and would recommend it as it's right at your budget (although on the top end)

my screen on amazon shows a $50 coupon to clip to bring the price down some plus add the hardwire kit, an sd card, and an add-a-fuse (mini or low profile size depending on what's in her car) should bring you right to $250 after taxes