Freni e Frizioni

This perennially cool Trastevere bar is housed in an old mechanic's workshop – hence its name ('brakes and clutches') and shabby facade. It draws a young spritz-loving crowd that swells onto the piazza outside to sip well-mixed cocktails and seasonal punches, and fill up on its lavish, complimentary and mainly vegetarian, aperitivo buffet (7pm to 10pm). Table reservations essential Friday and Saturday evenings.