I use a 9" extension (measured tip to tip) on the plug socket... I unplug the electrical connector from the coil pack to get it out of the way.... then put the socket down onto the plugs with the extension, but not with the wrench attached... you can lift back the rubber hood seal at the top of the firewall for clearance... then after the socket is on the plug, you will have room to attach the wrench

This is the first car I've owned where I could get at all plugs.