Autoglide,
BHX 1 - 1.5 hours drive from London!!?? A one a hour drive would require a licence-losing 100mph+ performance - 1.5 hours perhaps possible, at 02:00 on a Sunday morning - with all roadworks lifted!!!
Realisticly, add one hour to both times.
BHX isn't comparable to MAN, partly because of the London proximity issue, and partly because whilst the Birmingham City Concil was twiddling their thumbs and navel gazing in the 1960s, Manchester had the foresight to build an International airport and runway to match. Since then MAN has always had the edge over BHX.
Things might had been different if thw two sets of councillors had been in opposite council chambers.