The lion like creatures on the road between Bampton to Wiviliscombe Dec 1995

Me and my wife seen something on the edge of Exmoor about 20 years ago, and we still haven't been able to explain. Three "animals" walked across the road in front of our car. They were on four legs, a sandy colour and they were huge! Really big and bushy round about the shoulders. Like hyenas maybe. But much bigger It wasn't a big cat or a wolf. I didn't get a good loock at the face, but there didn't seem to be any muzzle or snout. It seemed flat . At first sight I thought they were lions, but whene I thought about they were totally different. No tails, no muzzle, no mane as such and a really weird flat face! Really big though, huge in fact.. It was between Bampton and Wiviliscome, December 1995. I stopped the car, and looked back, but they were gone. They just walked right across the road in front of us. They didn't show any fear. We just looked at each other and we both said at the same time "did you just see that?"