Honda’s Mean Mower has officially broken the Guinness World’s title for the Fastest lawnmower, averaging 187.61km/h (116.57mph) to break the previous record by over 45km/h. The successful Guinness World Records attempt took place under the watchful eye of a Guinness World Records Adjudicator at the IDIADA Proving Ground, in Tarragona, Spain, on Saturday 8th March…