I’ve been in the tyre business for a lifetime and on my 320 eriba I’ve fitted 185/70r13 Vredestein All season. Reasons, first I wouldn’t put a Chinese tyre on a wheel barrow let alone something I was driving/towing. 2nd it’s not the world’s most popular size & to get a quality tyre that’s also an all season tyre when I’m hoping to caravan in cold weather. Statistic, Michelin quotes at only 50 mph on nothing more than cold wet tarmac comparing their summer & winter tyres gives 6 meters difference!! So stopping, cornering, on the twist roads where I’m usually on it handles a dream. And last having a motor mover I like to think it gives me better traction if I was any where steep on grass etc