RedGrey's origins began in 2005 as MM-Motorsport, the competition entry and trading name used by Märtin's company, Triple-M.[2] This team won consecutive Estonian Group N championships between 2006 and 2010.

In April 2023, it was announced that Märtin had sold his stake in the business and would no longer work in partnership with Tänak, or in the motorsport industry.

Driver Ole Christian Veiby was banned from global motorsport for six months for breaching these quarantine rules.

After winning the teams class at Rally Finland, Suninen was disqualified for having an underweight bumper fitted.

[11] RedGrey entered the 2023 ERC season in their own name, they competed in the first round using Ford Fiesta Rally2 and Hyundai i20 N Rally2 cars for Robert Virves and Georg Linnamäe.