Evo Triangle

The Evo Triangle is a 20-mile loop on the Denbigh Moors near Cerrigydrudion, formed by the A5, the A543 and the B4501. It takes its name from the magazine whose road testers used it for years, and it became a place of pilgrimage for anyone with a sports car.

The drive

The A543 is the fast side: open moorland, crests and long sighted curves. The B4501 past Llyn Brenig is narrower and bumpier, with compressions that test damping. The A5 leg is an ordinary main road that closes the loop.

It is a short drive, so combine it with the roads to the west. The A4212 to Bala, the B4391 over to Ffestiniog and the A4086 through the Llanberis Pass are all within an hour.

In your Porsche

Bumpy, cambered British roads show the difference between Porsche chassis settings. A Carrera or a Cayman on standard or PASM suspension flows along the B4501 side; a GT3 or GT4 on its firmer springs has to be worked harder and can skip over the worst of it. Plenty of British magazine group tests of Porsches were photographed here. Average speed cameras now cover the loop, so it is a road to enjoy for its flow, at the limit posted.