My Father did the same thing on his old MG TD. One light was a fog to light up the sides of the road and the other was a high power narrow beam to light up the distant road. It was set up so that it was a third level of lighting: normal headlights - high beams headlights - high beams+Additional lights.

Since I use my lights for off road I decided on two widebeams fot he the sides and two daylighters for the front. Kind of the same thing but with double the lights.

I just need to get home and mount them.