In 2004 the SUV was the most exciting automotive market and this X5 was at the top of the list. I remember my first ride in a 4.8is and was blown away with its power and the noise it made. 10 years ago everybody was talking about SUV's and today, they still are. The only X5 I find worth talking about over the past decade is the 4.8is. That small letter "s" is what really sets this one apart from the others. In BMW language that means it has a 355 horsepower 4.8 liter engine that was based on an [...]