320si is different from 318i/320i.
320si is a limited edition (2600). Its not comfortable as a standard 320i and more racier and with a sportier suspension than with a 3er with the sportpackage. The engine has no valvetronic and handbuilt. Also equiped with 18" rims.
173 horsepowers and redline at 7400 rpm.
The racing version is used in STCC/WTCC and developing 275hp.
I admit its no rocket in straightlines but its more sportier and racier and a lot more fun to drive than 318/320/328. Don't underestimate the 320si.
