Faults:

Battery died at approximately 2000 km.

Ignition failed several times. Was fixed by software update.

Left indicator self-cancels too easily.

Car alarm system is buggy.

Most of the problems are the result of software bugs, and are not expensive to fix.

General Comments:

The 307 is a beautiful car from the outside and from the inside.

The drive is comfortable for the driver and passengers on long routes. City drive is less pleasant.

The engine is quiet. No wind noise at high speeds.

Automatic gear is not smooth, but the Tiptronic manual control is a good compensation.

High performance and good handling. Brakes are OK especially in regressive behavior. Great kickbacks.

Generally fun to drive once you get used to it.