I have an electrical and I like the ease of instalment and the lack of fear of oil in the compartment. I think in NZ that street cars are not allowed to have mechanical guages? Does anyone know? The only problem is finding an adaptor for the electrical. In my Toyota racecar I could screw in an imperial thread as it went straight into the block. The 1200s have that weak cast alloy oil filter attachment which I have cracked trying to install a NPT thread which aftermarket guages normally come with. A BSP thread is needed. In the end I found a Toyota Levin sender which screwed straight in so my advice if you go electrical is to find a Japanese engine's electrical sender unit.