ESCs for Four Wheel Drive

I now have some very nice motor mounts from RoboteerNat to fit our Argos drill motors, and am thinking of going four wheel drive for a pusher robot.

I have this ESC which runs dual motors (hopefully).
https://www.ebay.co.uk/itm/Brushed-E...UAAOSwe2ZbuxLQ

Will I need two ESCs for four wheel drive, splitting the input from the receiver?

Or could I just use the one ESC and split the output in parallel? I'm thinking that would just halve the power going to each motor and not gain anything.

with most RX we use, you plug it into two channels and mix them either on the Transmitter or on a mixing board also i wouldnt use that ESC if you could help it. much doubting hat goes on when they start quoteing 320A on something size of a servo tester. i would suggest THIS yes it a x4 the money but it will work

When I implemented 4WD drive in my Middleweight with a different speed controller, I spliced off the outputs from the speed controller to the two motors per side in Parrarel which worked well enough but as noted, I wouldn't recommend those ESCs. They "work" but they can't handle the load in my experience. I'd go with the suggestion Mark put for peace of mind.

Thanks for advice chaps. I assumed the 320A was a typo for 32!

Will pick up the recommended ESC.