Looking at the Wikipedia article for the Peugeot 106 most of the engines that were offered in the 1995 model year only put out around 100 HP. Since you had a "

Looking at the Wikipedia article for the Peugeot 106 most of the engines that were offered in the 1995 model year only put out around 100 HP. Since you had a "cheapest" rental Dart I'm assuming it had the base engine which is rated at 160 HP of power, around 60% more powerful. Comparing the curb weights, the 2015 Dart is also around 70% heavier than the 1995 106 which is expected since the Dart is a segment larger than the 106 and it would have all the safety and "infotainment" technologies developed in those 20 years. The increased power of the Dart makes up for the increased weight, and at US fuel prices it still probably costs less to fill up for the average US driver than your 106 would in Europe even though it's more efficient. For comparison, I own a 2012 Chevrolet Sonic (known as the Aveo overseas) with the 1.4 L turbo engine (rated 138 HP). I have a mostly-highway commute and my lifetime average MPG(-US) is 38.0. On a long road trip I take once per year I have gotten over 50 MPG (measured by dividing the fuel I consumed on the trip by the distance I traveled) despite the vehicle only being rated at 38 MPG highway by the EPA. You can easily exceed the EPA highway rating on most cars if you accelerate gently and don't drive too much faster than 70 MPH.