The Primary Target Market segment is Class 7 & 8 (Rigid and Tractor-Trailer) Heavy Goods Vehicles for long-haul freight transport. These comprise a 70% market share of the Heavy Goods Vehicles market and must be 15% and 30% more efficient by 2025 and 2030 respectively. Battery technology is unsuitable for this size and range due to the cost and weight of the battery required. A re-think is needed if manufacturers are to avoid financial penalties in the tens of billions. Carnot power units will eliminate CO2 emissions, avoid financial penalties and reduce the total cost of ownership by approximately £380,000 per unit.