Can I save money by wild camping?

No. Wild camping is illegal in Iceland. You must stay in designated campsites, which usually cost $15-$25 per person per night.

Is a 4x4 vehicle necessary?

Only if you plan to drive 'F-roads' into the highlands. If you stick to the Ring Road (Route 1), a standard 2WD vehicle is perfectly fine and significantly cheaper to rent and fuel.

How to Drive the Iceland Ring Road on a Budget

Cut costs by renting a small campervan to combine transport and lodging, and commit to cooking 90% of your meals using groceries from Bonus or Kronan supermarkets. Avoid expensive tour operators by sticking to the free, world-class natural landmarks accessible directly from Route 1.

Book a fuel-efficient compact camper. A campervan eliminates the need for hotels (avg $200/night) and gives you a kitchen. Rent the smallest manual-transmission van possible to save on both rental fees and Iceland's high fuel costs.
Shop at budget grocery chains. Avoid '10-11' convenience stores at all costs. Shop exclusively at Bonus or Kronan. Stock up on staples like pasta, rice, skyr, bananas, and bread before leaving the Reykjavik area.
Use the 'Free Hot Spring' map. Skip the $80 Blue Lagoon. Use the 'Hot Pot Iceland' map to find local geothermal pools and natural hot springs. Many are free or cost less than $10 for entry.
Limit alcohol and dining out. Alcohol is heavily taxed in Iceland. Buy your limit at the Duty-Free store in Keflavik airport upon arrival if you plan to drink. A single meal out will cost $30-$50 per person, so keep restaurant visits to a 'one-time treat' policy.

Can I save money by wild camping?: No. Wild camping is illegal in Iceland. You must stay in designated campsites, which usually cost $15-$25 per person per night.
Is a 4x4 vehicle necessary?: Only if you plan to drive 'F-roads' into the highlands. If you stick to the Ring Road (Route 1), a standard 2WD vehicle is perfectly fine and significantly cheaper to rent and fuel.