Car

Someone unlocked his car alarm using a remote key outside my window. It beeps only twice, and I duplicated it 2 times to make it longer.

car driving by on a cobblestone street

A siren type sound. I am not sure if this was really a siren or a bird chirping that resembled a siren. Either way, it's a pretty interesting little bit of audio.

Riding the bus, hearing the station-announcements, hearing two female students talking about chemistry in german.

Pushing a cassette into the car stereo tapedeck.
Tape motor starts. *kink* The tape runs.
Ejecting the tape.

Sounds like a stapler, but is the buckling of a seatbelt in a subaru justy.

sitting down, fetching seatbelt, fasten seat-belt, keys, turning keys, ignition, loosen break, change gear, turn steering wheel, drive back, change gear to go, drive forward, use winker.