Electric would be ideal though, you say most of your travel is just around town. So day to day it will be no problem, and for the three longer motorway trips a year just look on trip route for chargers. When we just potter around town, we only charge it once a month on average, which you could do with normal plug at home if space ( just takes longer but rarely matters), or pop in somewhere locally like supermarkets which you shop.
The Id4 has a really good range. It’s up to 550km, and this summer it was always at 510-520km so pretty much does the max. We did two long journeys which were both 1000km+ trips (600 ish each way), and only charged it once each way which was where we stayed overnight. But we also stopped off a few times at motorway services (toilet and toddler run around), and there was always plenty of chargers with at least half empty.
Both trips were around 3 weeks long, so boot had everything needed for 2 adults and a 3 year old for that time. Nothing was packed onto back seats as I wanted that clear incase one of us had to sit with toddler if fussy. Had large and small suitcase, large hold-all, pram, kids toilet seat!, 12’’ bike, swim floats and life vest, beach toys, coats, and other crap I’m sure.
The new Peugeot 3008 electric is out next year. A much more reasonable price than many, and looks really good space wise. And does up to 700km.