Smart cars tipped San Francisco have been victims of overnight pranks. The Smart mini vehicles were reportedly toppled on their sides in separate incidents early on Friday. According to police, two more smart cars tipped San Francisco have happened overnight in the neighbourhoods of Twin Peaks and Cole Valley.

It was two months ago that smart cars tipped San Francisco incidents have begun. Now San Jose Mercury News reports that the latest of the pranks which causes smart cars tipped San Francisco were of two more cars. According to police, the new "tippings" were reported at 3:40 a.m. at Clayton Street and Parnassus Avenue and at 5:38 a.m. in the 1300 block of Clayton Street, near 17th Street.

The San Francisco Chronicle reports that the first tipping which happened around 3:40 a.m. occurred at Clayton Street and Parnassus Avenue in Twin Peaks while the second recorded tipping happened around two hours after the first on Clayton near 17th Street in Cole Valley. According to police spokesman Officer Gordon Shyy, officers have already taken vandalism reports, however, there is still no information regarding the suspects.

The three smart cars tipped San Francisco incidents in April reportedly occurred one morning in the month at a 10-block radius near Bernal Heights. The police said that though the smart cars tipped San Francisco may have been pranks, they can already be considered as felony vandalism.

As it were, the tipping prank involving the cars which were first made by German auto manufacturer Smart Autombile in the late 1990s is reportedly quite a common occurrence. This is because the almost 1,600-pound cars can be easily tipped onto their sides, roofs or ends as compared to other vehicles.

Smart cars tipped San Francisco were not the first incidents of car tipping in the world. According to the SF Chronicle, the tiny vehicles were first a victim of the pranks in Amsterdam in the year 2009. Some cars were even said to be dumped into canals. The tipping pranks reportedly spread in 2011 to Canada and were soon adapted to a number of cities in the U.S. Meanwhile, a common motive for the crimes still had not been identified.