Amazon has the Auto-Vox Touchscreen Dashcam w/ Backup Camera for $110 - $33 off with coupon 7H8TQAX6 (Ends 1/15) = $77 with free shipping. Features include a 4.5" IPS color touchscreen LCD, front-facing 165° camera with 1080p video recording.
Has excellent Amazon Reviews.
Amazon has the YI 2.7" 1080p HD Wide Angle Dashboard Camera (89006) for $50 - $14 off with coupon 83QF3YF2 = $36 with free shipping. It features a 1920x1080p 60fps high definition image and first-class night vision, 165 ultra wide-angle to reduce blind spots and obtain full 3 lane coverage.
Has good Amazon Reviews.