| Grosse Pointe Park to Oliveira de Frades | 3,734.88 mi (6,010.71 km) |
| Grosse Pointe Park to Oliveira do Bairro | 3,726.82 mi (5,997.73 km) |
| Grosse Pointe Park to Oliveira do Hospital | 3,761.48 mi (6,053.52 km) |
| Grosse Pointe Park to Ourem | 3,752.38 mi (6,038.87 km) |
| Grosse Pointe Park to Ovar | 3,709.24 mi (5,969.44 km) |
| Grosse Pointe Park to Pacos de Ferreira | 3,707.01 mi (5,965.86 km) |
| Grosse Pointe Park to Palmela | 3,773.21 mi (6,072.39 km) |
| Grosse Pointe Park to Paredes | 3,712.23 mi (5,974.26 km) |
| Grosse Pointe Park to Paredes de Coura | 3,678.88 mi (5,920.59 km) |
| Grosse Pointe Park to Penacova | 3,744.94 mi (6,026.90 km) |
| Grosse Pointe Park to Penafiel | 3,714.30 mi (5,977.59 km) |
| Grosse Pointe Park to Peniche | 3,724.99 mi (5,994.79 km) |
| Grosse Pointe Park to Peso da Regua | 3,738.91 mi (6,017.20 km) |
| Grosse Pointe Park to Pinhal Novo | 3,770.37 mi (6,067.82 km) |
| Grosse Pointe Park to Pinhel | 3,784.04 mi (6,089.82 km) |
