Try Max from FontFont by Morten Olsen. I think it's a cool and modern alternative to Eurostile...

http://www.myfonts.com/fonts/fontfont/max/

FF Max is definitely a great Eurostile alt, but for that width I'd look at (in order)
Stainless, FF QType, Register, FF Trademarker, Aggie, and Kamaro.

thanks so much for that :) fast and reliable as always !!!

If you're not completely sick of the sight of it, hows about good old Bank Gothic?

http://www.myfonts.com/fonts/bitstream/bank-gothic/

Definitely Microgramma, which is what granfathered and inspired Eurostile, but way better with more variations. People confuse them all the time, but this was the one seen all over the place in the 50's-70's, especially in industrial trends.

http://www.myfonts.com/fonts/urw/microgramma/

FF Trademarker reminds me of another possibility: Serpentine.

(These may be too different from eurostile extended...)

Signa
Batory
Armchair
Zeppelin (the wide ones)

House Gothic

Nick Shinn's Panoptica Sans will give you a nice wide unicase option, in three weights.

- Mike Yanega

Maybe Handel Gothic?

More stylized: Saturn Extended

THANK YOU :)