We are in London for 6 nights with 2 girls 8 and 12. For day trips, I want to do Windsor, Stonehenge and the Cotswolds. From what I've read, driving is the best way to see the last one. Am looking for recommendations on how I can squeeze Stonehenge or Windsor with the Cotswolds. Recommendations for car rental companies, specific places to go to in the Cotswolds would be great!