
Also make a point of not travelling during likely sunny periods, set off in the early hours and make return journeys as late as possible in afternoon so avoiding travel when sun is at its strongest. Carry *chilled* blankets or towels (layered between ice packs in a cool box) which the dogs can lie on if you are stuck in a traffic jam and of course always carry a large container of *chilled* water.
Invest in a travel cage - the rear door or hatch of your vehicle can be kept fully open during rest breaks and also as *temporary* emergency measure if caught in lengthy queues of motionless traffic (not when actually driving the car!) something which is totally impossible with a dog-guard only.
regards, Teri :)