I don't care about any of that personally. I buy cars for the driving dynamics and performance. I've driven the 2L 3 and own a 2.5L NA 6. I liked both. 2.5L engine is a must. 6's extra wheelbase and chassis makes the car feel much better - More refined and stable. The 3 is more fun to drive and sporty feeling with better controlled body motions and sharper steering. Quality wise, both are good cars but the 6 is more roomy and comfortable. The chassis and engine in the 6 + the nicer styling/interior is my favorite part.
the 3 with 2.5L engine is quick, but after Mazda updated the 6 inside and out, it's no competition. Before 2016 either or was a great choice.
the 3 with 2.5L engine is quick, but after Mazda updated the 6 inside and out, it's no competition. Before 2016 either or was a great choice.