My 2004 Verona had factory installed "NGK BKUR6ETB" regular spark plugs which I replaced at 30,000 miles. The 2005 model year is supposed to have Iridium spark plugs.
To replace the spark plugs:
1. Remove plastic top engine cover. 5 nuts 10mm socket.
2. Unplug connector from each ignition coil. qty 6.
3. remove 2 hold down bolts per ignition coil. 10mm socket.
4. remove ignition coil, lifting straight up.
5. Spark plug is now accessible, use deep well 5/8 spark plug socket to remove.