I’ve been using Brittany back and forth to Spain every year for more than 15 years.
Prices have obviously gone up but there is no “cheap” way to take your car to Spain. Driving bores me so sitting on an autoroute through France isn’t for me.
What has changed with Brittany is that you used to get an evening meal and continental breakfast in the ticket price. That stopped 2 or 3 years ago.Now Brittany are trying to sell meal vouchers up front with a paltry discount.
Being a member of the Camping and caravanning club gave a discount on Spanish crossings. Thats been withdrawn.
Leaving in a couple of weeks time i have paid £430 for car,caravan,inside cabin, Portsmouth to Bilbao.
Coming back to Santander to Portsmouth it’s £100 more which doesn’t make sense.
The French route i would choose would be Newhaven/Dieppes nightime sailing. Cheapest price,early morning arrival meaning you can get plenty of miles in on the first day.