Base on this:
https://pod-point.com/landing-pages/how-long-does-it-take-to-charge-an-electric-carTo drive from, say, Belfast to Malaga, approximately 1800 miles, would require...
Starting from a full overnight charge before hand. Assuming motorway service stations can be found at all stages for fast charging and the car supports 22kW charge rate:
"80 miles of range per hour" or (1800 - 200 initial range) / 80 mph charge rate = 20 hours charging time. PLUS the 31 hours actual driving time. So 51 hours if done with drivers taking shifts.
Making it more realistic with 16 hour days, 8 hours sleeping, 2 drivers in shifts and an average speed, mostly motorway of 60mph and a 200 mile range.
3 hours = 180 miles + 2.25 hours charging = 5.25 hours per "stint", per 180 miles.
Swap drivers repeat.
3 stints per day, giving 15.75 hours, 9 hours driving, 6.75 hours charging, 540 miles travelled per day.
You will reach Malaga late on the 4th day.
In a petrol car the numbers are significantly different.
3 hours = 180miles + 0.25 hours refilling = 3.25 hours per stint, per 180 miles.
Swap drivers repeat.
5 stints per day, giving 16.25, 15 hours driving, 1.25 hours refilling, 900 miles.
You would reach Malaga end of the second day.
This does not account for the petrol car having as much as 400 mile range, although the driver shifts of 3 hours seems fair.
Not to mention how much you will shorten the battery life of the car rapidly charging it from nearly flat to full 8-12 times each way.
I don't know how much rapid chargers cost to use, presumably it's cheaper than petrol still, but for the electric you have the added cost of an extra 2 over nights in B&Bs at 100+ Euro a night for 2 sharing.
Any mistakes in the petrol car and you call a recovery service to bring you petrol. Any mistakes in the electric and you need a tow truck. You would be safer in a semi-hybrid like the BMW which has a generator to slow charge the battery if you get stuck.