See also:

Tire inflation pressures at max. speeds above 100 mph/160 km/h
Speeds above 100 mph/160 km/h In order to drive at maximum speeds in excess of 100 mph/160 km/h, please observe, and, if necessary, adjust tire pressures for speeds exceeding 100 mph/160 km/h ...

Remove unnecessary cargo
Additional weight increases fuel consumption. ...

Note
Manufacturer's information for LATCH child restraint fixing systems To mount and use the LATCH child restraint fixing systems, observe the operating and safety information from the system manu ...