|TTC Flexity Outlook on King St.|
According to Wikipedia the 48.4m long version of the Alstom bought by OC Transpo will handle 300 passengers, and the 30.2m TTC Flexity clocks in at 251*. Interestingly, Wikipedia also notes that
The [Alstom] Citadis Spirit is designed for both city-centre and suburban operation. Its 100% low-floor design has no interior steps or ramps. The vehicle can be used for both street-running allowing boarding from street or curb, and high-speed travel up to 105 km/h (65 mph).
So since it's a modular design, some shorter configuration would allow it to run as a streetcar - a streetcar in disguise? :-)
*For PCC fans, if 2 of the TTC's old PCCs were strung together, the train would have an approximate length of 30 metres, and the 'crush load' would be around 268 passengers. The operative word here being 'crush' :-)