2011 Honda Civic Si Coupe Overview - Official Site See pictures, reviews and specs for the 2011 Civic Si Coupe. Features include a 197-hp K20Z3 engine, efficient mpg and exclusive 17-inch alloy wheels. The 2011 Civic Si Coupe . Almost as long as the Honda Civic has dominated the roadways, there's been a Si version that has turned heads. The Si model has traditionally been sportier, more powerful, faster and has provided quit2011 Honda Civic Si Sedan Overview - Official Site See pictures, reviews and specs for the 2011 Civic Si Sedan. Features include a 197-hp K20Z3 engine, exclusive 17-inch alloy wheels and a 7-speaker audio system with MP3/WMA .