BMW still has all its 6 cylinder engines as straight 6's. No v6's but they do have V8s and V12's
Subaru has a horizonally opposed 4 cylinder engines.
Once I had straight 6 engines in a 65 Plymouth and a 67 Chevy Van.
4 cylinder I4 or a straight 6 makes a lot of sense. One less catalytic converter than a V configuration and half the number of O2 sensors. Cheaper to maintain.