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The report challenges claims by the American Automobile Manufacturers Association (AAMA) that modern cars are 90-96% cleaner than 1960s precontrol cars. It finds that real-world emissions are significantly higher than regulatory standards due to equipment malfunction and 'off-cycle' driving. Furthermore, a 2.7-fold increase in total vehicle miles traveled and a shift toward light trucks—which have less stringent standards—have offset per-vehicle gains. Consequently, while hydrocarbons decreased, nitrogen oxide emissions for the total passenger fleet actually increased by over 20% between 1965 and 1995. The author concludes that passenger vehicles remain a primary source of carbon monoxide and smog-forming pollutants, necessitating a shift toward intrinsically-clean vehicle technologies.

The paper presents a technical case for 'ultralight hybrid vehicles' (UHVs), asserting that fuel efficiency can be improved 3–4x over conventional cars without compromising marketability. It emphasizes that reducing tractive loads—through mass reduction, aerodynamic optimization, and low-rolling-resistance tires—is the most critical factor in making hybrid drivesystems cost-effective. Using the SIMPLEV model, the author demonstrates a design with a curb mass of 585 kg and a drag coefficient of 0.19 that achieves high fuel economy (up to 115 mpg on highways) and low emissions, while meeting strict performance criteria for acceleration and gradability.

The paper argues that achieving tripled fuel economy requires a systems-optimization approach rather than incremental improvements. It proposes a combination of carbon-fiber composite body-in-white structures, low-drag aerodynamics, and series hybrid-electric propulsion. Modeling suggests that such a 'leapfrog' approach can yield vehicles achieving 80-100+ mpg while maintaining family-sedan utility and safety.

The document examines the role of hydrogen fuel cells in decarbonizing heavy-duty trucking, noting their efficiency advantage over internal combustion engines and suitability for long-haul operations compared to battery electric vehicles (BEVs). It identifies California as the primary region for adoption due to supportive policies, but highlights critical barriers including high hydrogen costs, infrastructure gaps, and the financial instability of FCEV startups like Nikola and Hyzon.

The report analyzes the challenges of decarbonizing Canada's critical minerals sector, noting that while Canada currently has a low-carbon advantage due to clean electricity grids, this edge may erode as other nations transition. It identifies three primary barriers: a lack of market demand for low-carbon minerals (no 'green premium'), fragmented supply chain infrastructure hindering traceability, and supply-side hurdles including the slow commercialization of electric ultra-class haul trucks and limited access to low-carbon power for off-grid mines. The author recommends a policy toolkit including the integration of emissions intensity into support programs, funding for R&D in technologies like direct lithium extraction, and the maintenance of large-emitter trading systems.

The report argues that South Africa can transition its mobility sector to zero-emission vehicles by leveraging the Atlantis Special Economic Zone (ASEZ) to attract EV assembly and component manufacturing. It highlights a strategic opportunity in public transport, noting a potential market of 350,000 minibus taxis and 65,000 buses. The document identifies high import taxes (at least 42% for EVs) as a barrier to uptake that local manufacturing at the ASEZ could overcome. It recommends targeting global OEMs like Tesla and BYD, as well as local startups like MellowVans and Green Riders, while emphasizing the need to localize the production of lithium-ion battery cells and semi-conductors to secure the value chain.

Ghana aims to reach net-zero emissions by 2060, a transition requiring approximately USD 550 billion in capital investment. The plan identifies a shift toward solar PV, electric vehicles, and clean cooking as primary abatement drivers, while noting that without action, emissions could rise from 28 Mt CO2e in 2021 to over 140 Mt by 2050. The strategy emphasizes the need for de-risking instruments to attract private capital and the establishment of an Energy Transition Office to coordinate implementation.

The report outlines the assumptions used to model transportation emissions reductions by 2030, including fuel economy targets, the adoption of plug-in hybrids, and the deployment of cellulosic ethanol. It describes adjustments made to the AEO 2008 model to reflect more aggressive efficiency standards and the impacts of smart growth policies.