Someone more experienced than me might shoot down this theory but the coastal route passes through a lot more towns and cities which can quickly slow down progress.
Personally I would be tempted inland as even the coastal roads wouldn't be the speediest if narrow and full of traffic.
Yeah, a lot more traffic and towns, but i would've expected it to be faster. The inland roads are very quiet and good, at least some of them, but slowish because hilly.
Someone more experienced than me might shoot down this theory but the coastal route passes through a lot more towns and cities which can quickly slow down progress.
Personally I would be tempted inland as even the coastal roads wouldn't be the speediest if narrow and full of traffic.