President Obama is barnstorming the heartland to boost US jobs in a taxpayer-financed luxury bus the government had custom built -- in Canada, The Post has learned.

The $1.1 million vehicle, one of two that Quebec-based Prevost sold the government, has been tricked out by the Secret Service with state-of-the-art security features and creature comforts.

It's a VIP H3-45 model, the company's top of the line, and is used by major traveling rock bands.

"That's the more luxurious model," Christine Garant of Prevost told The Post.