CBC_1_CarSearchForm.xml

<aura:component implements="force:appHostable,flexipage:availableForRecordHome,force:hasRecordId">

	<lightning:layout horizontalAlign="center">
	    <lightning:layoutItem>
            <lightning:select name='selectItem' aura:id="carType" label='All Types' 
                              variant="label-hidden" value="">
                <option value="" text="All Types" />
                <option value="" text="Sports Car" />
                <option value="" text="Luxury Car" />
           	</lightning:select>
        </lightning:layoutItem>
        
        <lightning:layoutItem padding="around-medium">
            <lightning:button label="Search" variant="brand" />
            <lightning:button variant="neutral" label="New" />
        </lightning:layoutItem>
    </lightning:layout>    
</aura:component>