Express 3 is a high speed catamaran built by Incat for Molslinjen.

In October 2015, Molslinjen placed an order with Incat for the KatExpress 3.

[4] Her design is based on an earlier 112 metres (367 ft) Incat specification of which Molslinjen operates two examples, but modified for lower fuel consumption and improved vehicle deck efficiency.

[4] She can carry 1,000 passengers and up to 411 cars, or up to 227 cars when her 610 lane meter freight deck is occupied by commercial vehicles.

[4] She is powered by four 20-cylinder MAN diesel engines that drive Wärtsilä waterjets, giving her a service speed of 40 knots (46 mph) and a maximum speed of 47 knots (54 mph).