Porsche 911 R Meets 918, GT3 RS, GT4: Top Gear Track Day on Scotland’s Knockhill

Any Porsche track day is the stuff of wet dreams, but when such an event sees a 911 R meeting a 918 Spyder, a GT3 RS PDK and a Cayman GT4, among others, the excitement level goes through the (magnesium) roof. The Zuffenhausen specials mentioned above are exactly what you’ll find in the image gallery at the bottom of the page, but, we have to admit we were a bit disappointed when we checked out the number plate of the 911 R.