Quick Question about motor choice

Hi everybody!
As planned I've started buying the needed stuff to build a 2DOF sim (like the one from RacingMat, not much budget).
Till now I've bought an arduino uno r3, a motomonster shield and a racing seat.
Now I got stucked with the motor choice.
I've read about suggested motors from SWF (the Valeo 404.458 are available now for about 120 euros shipped), but in order to save some money I would ask a question about two cheap motors I've found on a local car wrecker (45 euros both).
These motors were on a small truck, unfortunately there is no model data reported except for the producer (OSLV) and the voltage (12V).
According to the measurements I made (diameter of the motor and gearbox axle spacing) I've found that the model should be this one: http://www.oslv.com/uploads/prodotti_pdf/automazione/Mr90_SX.pdf.
Should be because when I plugged the motors in under a 12V voltage they showed slower RPMs than expected, about 50-60 RPM with no load in respect of 120 RPM as reported in the pdf.
Can they be suitable and powerful enough for a car racing sim?
Is there any other test I can do to check the performances?

Thanks in advance to all of you!
Marco :-D

weird one that is. If the PDF says different, ask the supplier.
I though most wipers were 50-60 rpm standard.
The past builds I used that had wipers were about 50-60 rpm at 13.8v.
So yes, they would be fine, however, one thing I suggest is mount the motors at shoulders at rear , higher than Mats sim. You will get better performance if you do that.

Thank you so much bsft!
And thank you for the suggestion!
I reckon you, by saying to connect the motors in an higher position, intend to increase the lever? That's right?
Beside this, to achieve the same result, could it also be a good idea to use a longer metallic plate to connect rod to the motor?
As I can figure out being a complete newbie, this should be a critical part of the project thus I'd rather ask to get some good advices.
Sorry for this..I wouldn't bother..

However, last two things.
In a couple of days I'm going to start soldering the structure..so pictures and measurements are coming..hoping to do something useful for the community!
Secondly, I'm wondering if the motor supplier will answer the questions I've just asked him..

Thanks again
Marco

actually no I dont increase lever length. The idea of mounting higher is to get above centre of gravity.
However I found the desk racer mount where it is works well, but that is for a seat mover, not a full frame.