Stagecoach bus route X5 is an inter-urban bus service linking Oxford and Cambridge via Bicester, Buckingham, Milton Keynes, Bedford and St Neots. The route started in 1995 with an hourly service which was increased to half-hourly in 2005; new vehicles were introduced in 2009 and again in 2015. It operates with a 30-minute frequency for much of the day. Vehicles advertise free WiFi access, air conditioning and leather seats and are wheelchair accessible. The route carried 500,000 users in 2008; passenger numbers have grown by 150% between 2004 and 2009, leading to some problems with overcrowding. As of 2014, according to Stagecoach East's Managing Director, Andy Campbell, the route carries on average 1.3 million passengers annually. It is operated by the group's Stagecoach in Bedford divisi