Complex sentence: On 1 September 2008, Aston Martin announced the revival of the Lagonda marque, proposing a concept to be shown in 2009 to coincide with the brand's 100th anniversary.
Split into simpler sentences: On 1 September 2008, Aston Martin announced the revival of the Lagonda marque. A concept will be shown in 2009, coinciding with the brand's 100th anniversary.