The Singer DLS (Dynamics and Lightweighting Study) originally launched with a base price of $1.8 million, while the more recent and powerful DLS Turbo variant starts at approximately $2.2 million to $3 million USD. Due to extreme scarcity, with only 75 original DLS units and 99 DLS Turbo units produced, market values have significantly appreciated; recent auction results show standard DLS models selling for around $2.8 million, while specific DLS Turbo commissions are expected to fetch between $3.45 million and $5 million.