I went on British Airways' Airbus A320 planes before and after a major transformation. See how the old and new compare.

• British Airways is upgrading its short-haul cabins as part of a huge investment.
• I flew on one of the older A320s, then toured a brand-new A320neo at the Farnborough Airshow.
• The new color scheme is sleek and modern while the passenger experience is improved too.

British Airways is spending $9 billion to lift its reputation after years of slumping popularity.

When the two-year program was announced at a March press event, the most prominent change was new seats for its short-haul aircraft.