I guess I just have to wait. The two best cameras just came out and are out of stock. Only one has GPS, but it's a question whether it has wifi. Stunning video.
Vicovation OP-/A - 72x53x33mm 1920x1080 @60fps HDR, max 2560x1440 @30fps WDR, Apr 2016
Ultra-high dynamic range, 3D noise reduction, External GPS w tracking
Over temp & low volt protection, SuperCapacitor, Ambarella A12
Marcus 4 review (Not the Opia2 but close enough as there just isn't anything else):
CPL -
VicoVation CPL Filter
Vico-Opia2
Wifi? App? Angle of View: 160° -diagonal-
SJCam M20 - 61x43x25mm, 1920x1080 @60fps, max 2560x1440@30fps, May 2016
Fisheye correction, Image stabilization, Good app, NTK96660, Sony IMX206
166° adjustable N-M-W (diagonal?)
SJCAM M20 Camera
No GPS
Most of SDHC/SDXC cards on the market are TLC (Triple-Level Cell) type.
Their rewrite cycles (TLC) are limited, lower than MLC (Multi-Level Cell) and also cheaper.
I'm thinking about mounting the rear cam next to the backup cam, as it rains alot here and looking through that window with drops all over doesn't work. RC flyers take apart their dashcams to put the electronics in a different place than the pickup.
Also I read the remark that a dual dashcam is about half as good as two single dashcams...