have similar layouts to B&M's sit-down coasters. Installations Bolliger & Mabillard has built thirteen Floorless Coasters from the ground up, with three additional that were converted from stand-up roller coasters. The roller coasters are listed in order of opening dates. Note: Although some Dive Coasters (such as SheiKra, Griffon, Valravn and Yukon Striker) feature floorless trains, they are not considered Floorless Coasters. Similar rides Maurer Söhne, a German roller coaster and steel manufacturer, has developed their own version of the Floorless Coaster called the X-Car Floorless. The car is the same as the original X-Car with the only difference being that there is no floor during the ride. As of 2019, no X-Car Floorless roller coasters have been manufactured. See also Dive Coaster, a type of roller coaster also designed by Bolliger & Mabillard, that feature floorless trains on some models. Notes References External links Bolliger & Mabillard's Floorless Coaster Roller coasters manufactured by Bolliger & Mabillard