Lambada vs Sinus motorgliders

Which way? Both appear to be good motorgliders. I want something that can
glide, carry a passenger and to be used as a vehicle. Safety is important.
So far i found that the Sinus is marketed better than the Lambada. All specs
for the Sinus available on the net, can't say the same of the Lambada. I am
still trying to find out what the service ceiling of the Lambada is. Thanks
Robers and Ralph. Great help