Driving from Edinburgh to Inverness was one of the most stressful driving experiences ever. It was pitch dark, raining at times and there were very few cars/trucks on the road. There was construction and the road kept switching from a proper 2 lane divided highway to a single lane undivided road and back. The road signs were unfamiliar and I was driving on the LEFT side of the road. Total white knuckle driving! Thankfully, made it safely in about three and half hours.