| Light-duty vehicles |
| Vehicle miles traveled (compound annual growth rate, 2011-2040) |
1.2% |
0.2% |
11% |
| Vehicle technology efficiency in 2040 |
Baseline |
Baseline + 10% |
Baseline - 10% |
| Vehicle technology cost in 2040 |
Baseline |
Baseline - 10% |
Baseline + 10% |
| CAFE standard compliance value in 2040 (miles per gallon) |
49.0 |
57.7 |
39.9 |
| Flex-fuel vehicle stock in 2040 (millions) |
20.9 |
44.3 |
20.0 |
| Batter-electric vehicle costs |
Baseline |
Baseline - 14% |
Baseline |
| Heavy-duty vehicles |
| Vehicle technology efficiency in 2040 |
Baseline |
Baseline + 10% |
Baseline - 10% |
| vehicle technology cost in 2040 |
Baseline |
Baseline - 10% |
Baseline + 10% |
| Potential market share for natural gas fuel |
27% |
41% |
27% |
| Marine |
| Efficiency (ton-miles per thousand Btu) |
2.55 |
2.66 |
2.41 |
| Potential market share for natural gas fuel |
0% |
8% |
0% |
| Rail |
| Efficiency (ton-miles per thousand Btu) |
3.54 |
3.70 |
3.44 |
| Potential market share for natural gas fuel |
0% |
100% |
0% |
