A few years ago I sold the Z3 M and bought a Z4 M.
I bought the Z3 with 90k miles and sold it with more than160k miles. I was amazed at how many people wanted that car!

You might think that the Z4 M would be just like the Z3 M only faster. The Z4 has 330 hp compared to the Z3s 240. But, they are very different cars and it's just not that simple.

Z3 design was based on the third generation 3 series (E36) which started development in 1981 and began sales in 1991.

Development began on the Z3 in 1991 with production starting in 1995.

 Z4 development began in 1998. The car went into production in 2003.

In many ways these two cars could be a case study on the changes in the automobile industry from both a technology and style perspective.

For me the bottom line is that both of these cars are great fun to drive. They have distinct personalities that go beyond which one is fastest.