If your go-to is ISO 160, I assume you normally shoot Portra?
It's easy with B&W; I shoot almost entirely Ilford HP5+ and can meter it anywhere from ISO 100 to ISO 1600, as long as I mark the canister and adjust my development concentration and time.
With color you can still push/pull process and accomplish something similar, but it's much more likely to give you a wonky result. Plus, it screws with the standardized C41 process timing so labs are likely to charge more, if they push at all.
You might want to go with an ISO 400 film stock if you're doing color, and pack an ND filter or two to deal with sunny days. If things get really gloomy you can probably push a roll or two to ISO 800 without much trouble.