Mileage limits matter more here than almost any other rental scenario — confirm unlimited mileage specifically before booking, since a capped-mileage rental can turn an attractive daily rate into a very expensive trip once overage fees are calculated across thousands of miles.
One-way rentals (picking up in one city and dropping off in another) often carry a separate drop-off fee, which can be substantial depending on the distance and how commonly that specific route is driven by other renters — always get this fee confirmed in writing before committing to a one-way itinerary.
For genuinely long drives, choosing a slightly larger or more comfortable vehicle category than you'd pick for a short local rental is often worth the extra daily cost, given how many hours you'll actually spend in the car — comfort features that seem unnecessary for a weekend rental become much more relevant across several long driving days.
