I had the same questions Civic vs ALtis Grande and this is why im leaning towards the civic:
- exterior design - no comparison. the civic looks great. the corolla looks old and boring. (in my opinion).
- civic has rear AC vents which is pretty cool; plus the interior looks luxurious especially with the leather interior option.
- I also felt the civic is more roomy. I test drive my friends 1.5 Turbo and with both of us in the front seat it was very roomy.
- I test drove an altis grande and it with a passenger it semeed much smaller.
- also in the altis the driver leg room seemed cramped as in my left left leg kept hitting the pedals... when it really shoulldnt but you might want to test it yourself.
- also the beige interior of the altis i dont like - thats subjective but i prefer the interior of the civic.
- the civic seats are lower and might be an issue for lumber support (back) however three of my friends have the civic and they say its ok. plus you can always get an exterior lumbar support ...
- no ugly physical handbrake!! did i mention the interior is so much better
- smart entry on the passenger side as well! ALtis only has it on the driver seat
- I think the altis only has passenger height adjusting seats? not sure but not much of a concern for me.
- i have read that the altis navigation is faster and better and you can use google maps.
the few things that I with the Civic had from the altis
- ability to run google maps properly ..... altis has a sim slot if i read correctly.
- i think when youre altis goes past 20 KM the car will autolock...
the other stuff which the altis has but not such an issue for me personally
- reverse adjusting mirrors (pretty cool but not a reason for me to get this over the civic)
- auto leveling leds (not even sure what that is!!!)
- White lights vs the yellow lights (im guessing its the LED vs halogen etc etc)
- think when you park the car the rear view mirrors of the toyota fold in automatically
so im still sold on the civic mainly because of the interior, design and I really like the drive of it.... however I still want to test drive the altis for longer since I only did a 1 km or 2 with it.