Originally Posted by mkoesel
You're right - I sort of got on a little tangent there. That said, there's a gap between the 3 series coupe and sedan today, although I agree it is likely to increase. However, I don't think we'll see the same percentage difference we see between a 5 and 6 for example. What is the percentage difference in price between and A4 and A5, or between an S4 and S5? That's probably a good guage for what BMW will do.
That is exactly what I was saying in my original post. The 2011 M3 sedan and coupe gap was $3,000. I suspect that to nearly double. The current gap between the S4 and S5 is $6,600. I used the 5 and 6 serious as an extreme example. Their difference being over $20k and not exactly apples for apples. But it does shed light on where they make take the 4-series and M4 in the future. With the next generation 3-series chassis.